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56165672 = 23192231657
BaseRepresentation
bin1101011001000…
…0010100101000
310220200111211002
43112100110220
5103334300142
65323454132
71251254213
oct326202450
9126614732
1056165672
1129782112
1216987348
13b836934
14766077a
154de6a32
hex3590528

56165672 has 32 divisors (see below), whose sum is σ = 111417600. Its totient is φ = 26469504.

The previous prime is 56165657. The next prime is 56165677. The reversal of 56165672 is 27656165.

It is a super-3 number, since 3×561656723 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56165677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33068 + ... + 34724.

It is an arithmetic number, because the mean of its divisors is an integer number (3481800).

Almost surely, 256165672 is an apocalyptic number.

It is an amenable number.

56165672 is a deficient number, since it is larger than the sum of its proper divisors (55251928).

56165672 is a wasteful number, since it uses less digits than its factorization.

56165672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1901 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 56165672 is about 7494.3760247268. The cubic root of 56165672 is about 382.9631497926.

The spelling of 56165672 in words is "fifty-six million, one hundred sixty-five thousand, six hundred seventy-two".

Divisors: 1 2 4 8 19 38 76 152 223 446 892 1657 1784 3314 4237 6628 8474 13256 16948 31483 33896 62966 125932 251864 369511 739022 1478044 2956088 7020709 14041418 28082836 56165672