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242059680 = 253251071571
BaseRepresentation
bin11100110110110…
…00100110100000
3121212110220110100
432123120212200
5443431402210
640004102400
75666321232
oct1633304640
9555426410
10242059680
11114700025
1269094a00
133b1c24a5
1424210252
15163b65c0
hexe6d89a0

242059680 has 144 divisors (see below), whose sum is σ = 834279264. Its totient is φ = 63905280.

The previous prime is 242059663. The next prime is 242059691. The reversal of 242059680 is 86950242.

It is a happy number.

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

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

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, 153295 + ... + 154865.

It is an arithmetic number, because the mean of its divisors is an integer number (5793606).

Almost surely, 2242059680 is an apocalyptic number.

242059680 is a gapful number since it is divisible by the number (20) 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 242059680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417139632).

242059680 is an abundant number, since it is smaller than the sum of its proper divisors (592219584).

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

242059680 is a wasteful number, since it uses less digits than its factorization.

242059680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 242059680 is about 15558.2672557069. The cubic root of 242059680 is about 623.2191910369.

The spelling of 242059680 in words is "two hundred forty-two million, fifty-nine thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 107 120 144 160 180 214 240 288 321 360 428 480 535 642 720 856 963 1070 1284 1440 1571 1605 1712 1926 2140 2568 3142 3210 3424 3852 4280 4713 4815 5136 6284 6420 7704 7855 8560 9426 9630 10272 12568 12840 14139 15408 15710 17120 18852 19260 23565 25136 25680 28278 30816 31420 37704 38520 47130 50272 51360 56556 62840 70695 75408 77040 94260 113112 125680 141390 150816 154080 168097 188520 226224 251360 282780 336194 377040 452448 504291 565560 672388 754080 840485 1008582 1131120 1344776 1512873 1680970 2017164 2262240 2521455 2689552 3025746 3361940 4034328 5042910 5379104 6051492 6723880 7564365 8068656 10085820 12102984 13447760 15128730 16137312 20171640 24205968 26895520 30257460 40343280 48411936 60514920 80686560 121029840 242059680