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144813384 = 233253137277
BaseRepresentation
bin10001010000110…
…10110101001000
3101002111021121200
420220122311020
5244033012014
622211504200
73405615312
oct1050326510
9332437550
10144813384
117481a491
12405b8060
13240041c1
14153387b2
15caa7a09
hex8a1ad48

144813384 has 96 divisors (see below), whose sum is σ = 403972920. Its totient is φ = 46844928.

The previous prime is 144813377. The next prime is 144813391. The reversal of 144813384 is 483318441.

144813384 is a `hidden beast` number, since 1 + 448 + 133 + 84 = 666.

It is an interprime number because it is at equal distance from previous prime (144813377) and next prime (144813391).

It can be written as a sum of positive squares in 4 ways, for example, as 121484484 + 23328900 = 11022^2 + 4830^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522654 + ... + 522930.

Almost surely, 2144813384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144813384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201986460).

144813384 is an abundant number, since it is smaller than the sum of its proper divisors (259159536).

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

144813384 is a wasteful number, since it uses less digits than its factorization.

144813384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 472 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 144813384 is about 12033.8432763602. The cubic root of 144813384 is about 525.1333103641.

The spelling of 144813384 in words is "one hundred forty-four million, eight hundred thirteen thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 53 72 106 137 159 212 274 277 318 411 424 477 548 554 636 822 831 954 1096 1108 1233 1272 1644 1662 1908 2216 2466 2493 3288 3324 3816 4932 4986 6648 7261 9864 9972 14522 14681 19944 21783 29044 29362 37949 43566 44043 58088 58724 65349 75898 87132 88086 113847 117448 130698 132129 151796 174264 176172 227694 261396 264258 303592 341541 352344 455388 522792 528516 683082 910776 1057032 1366164 2011297 2732328 4022594 6033891 8045188 12067782 16090376 18101673 24135564 36203346 48271128 72406692 144813384