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144456346656 = 253210913733589
BaseRepresentation
bin1000011010001001000…
…1001110110000100000
3111210212102002202010100
42012202101032300200
54331321311043111
6150210132502400
713302522454416
oct2064221166040
9453772082110
10144456346656
1156299929366
1223bb617aa00
1310811bc30cb
146dc54132b6
153b5708a756
hex21a244ec20

144456346656 has 144 divisors (see below), whose sum is σ = 417604987800. Its totient is φ = 47360692224.

The previous prime is 144456346649. The next prime is 144456346663. The reversal of 144456346656 is 656643654441.

144456346656 is a `hidden beast` number, since 14 + 4 + 4 + 563 + 4 + 6 + 65 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (144456346649) and next prime (144456346663).

It can be written as a sum of positive squares in 4 ways, for example, as 143274362256 + 1181984400 = 378516^2 + 34380^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4283910 + ... + 4317498.

Almost surely, 2144456346656 is an apocalyptic number.

144456346656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144456346656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208802493900).

144456346656 is an abundant number, since it is smaller than the sum of its proper divisors (273148641144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144456346656 is a wasteful number, since it uses less digits than its factorization.

144456346656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33851 (or 33840 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 54.

The spelling of 144456346656 in words is "one hundred forty-four billion, four hundred fifty-six million, three hundred forty-six thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 109 137 144 218 274 288 327 411 436 548 654 822 872 981 1096 1233 1308 1644 1744 1962 2192 2466 2616 3288 3488 3924 4384 4932 5232 6576 7848 9864 10464 13152 14933 15696 19728 29866 31392 33589 39456 44799 59732 67178 89598 100767 119464 134356 134397 179196 201534 238928 268712 268794 302301 358392 403068 477856 537424 537588 604602 716784 806136 1074848 1075176 1209204 1433568 1612272 2150352 2418408 3224544 3661201 4300704 4601693 4836816 7322402 9203386 9673632 10983603 13805079 14644804 18406772 21967206 27610158 29289608 32950809 36813544 41415237 43934412 55220316 58579216 65901618 73627088 82830474 87868824 110440632 117158432 131803236 147254176 165660948 175737648 220881264 263606472 331321896 351475296 441762528 501584537 527212944 662643792 1003169074 1054425888 1325287584 1504753611 2006338148 3009507222 4012676296 4514260833 6019014444 8025352592 9028521666 12038028888 16050705184 18057043332 24076057776 36114086664 48152115552 72228173328 144456346656