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87568272 = 24321159937
BaseRepresentation
bin1010011100000…
…10111110010000
320002202221002100
411032002332100
5134404141042
612404520400
72112214041
oct516027620
9202687070
1087568272
1145480380
12253b0100
13151b015c
14b8b68c8
157a4b24c
hex5382f90

87568272 has 120 divisors (see below), whose sum is σ = 272170080. Its totient is φ = 26058240.

The previous prime is 87568259. The next prime is 87568277. The reversal of 87568272 is 27286578.

87568272 is a `hidden beast` number, since 87 + 568 + 2 + 7 + 2 = 666.

It is a super-2 number, since 2×875682722 = 15336404522131968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87568277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92988 + ... + 93924.

It is an arithmetic number, because the mean of its divisors is an integer number (2268084).

Almost surely, 287568272 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 87568272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136085040).

87568272 is an abundant number, since it is smaller than the sum of its proper divisors (184601808).

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

87568272 is a wasteful number, since it uses less digits than its factorization.

87568272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1012 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 87568272 is about 9357.7920472727. The cubic root of 87568272 is about 444.0674355814.

The spelling of 87568272 in words is "eighty-seven million, five hundred sixty-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 59 66 72 88 99 118 132 144 176 177 198 236 264 354 396 472 528 531 649 708 792 937 944 1062 1298 1416 1584 1874 1947 2124 2596 2811 2832 3748 3894 4248 5192 5622 5841 7496 7788 8433 8496 10307 10384 11244 11682 14992 15576 16866 20614 22488 23364 30921 31152 33732 41228 44976 46728 55283 61842 67464 82456 92763 93456 110566 123684 134928 164912 165849 185526 221132 247368 331698 371052 442264 494736 497547 608113 663396 742104 884528 995094 1216226 1326792 1484208 1824339 1990188 2432452 2653584 3648678 3980376 4864904 5473017 7297356 7960752 9729808 10946034 14594712 21892068 29189424 43784136 87568272