Base | Representation |
---|---|
bin | 1101100100100… |
… | …1110001100001 |
3 | 10222010002210202 |
4 | 3121021301201 |
5 | 104033102111 |
6 | 5352034545 |
7 | 1260566630 |
oct | 331116141 |
9 | 128102722 |
10 | 56925281 |
11 | 2a150896 |
12 | 17092a55 |
13 | ba415ca |
14 | 77bb517 |
15 | 4ee6b3b |
hex | 3649c61 |
56925281 has 8 divisors (see below), whose sum is σ = 65533440. Its totient is φ = 48436128.
The previous prime is 56925263. The next prime is 56925293. The reversal of 56925281 is 18252965.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 56925281 - 218 = 56663137 is a prime.
It is a super-2 number, since 2×569252812 = 6480975233857922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (56925221) 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, 28721 + ... + 30638.
It is an arithmetic number, because the mean of its divisors is an integer number (8191680).
Almost surely, 256925281 is an apocalyptic number.
It is an amenable number.
56925281 is a deficient number, since it is larger than the sum of its proper divisors (8608159).
56925281 is a wasteful number, since it uses less digits than its factorization.
56925281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59503.
The product of its digits is 43200, while the sum is 38.
The square root of 56925281 is about 7544.8844258875. The cubic root of 56925281 is about 384.6818781007.
The spelling of 56925281 in words is "fifty-six million, nine hundred twenty-five thousand, two hundred eighty-one".
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