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56678601 = 3723432729
BaseRepresentation
bin1101100000110…
…1100011001001
310221122120102110
43120031203021
5104002203401
65342452533
71255521510
oct330154311
9127576373
1056678601
1129aa2521
1216b94149
13b986245
147755677
154e989d6
hex360d8c9

56678601 has 32 divisors (see below), whose sum is σ = 92252160. Its totient is φ = 30248064.

The previous prime is 56678599. The next prime is 56678603. The reversal of 56678601 is 10687665.

It is an interprime number because it is at equal distance from previous prime (56678599) and next prime (56678603).

It is not a de Polignac number, because 56678601 - 21 = 56678599 is a prime.

It is a super-2 number, since 2×566786012 = 6424927622634402, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56678601.

It is not an unprimeable number, because it can be changed into a prime (56678603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19405 + ... + 22133.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 256678601 is an apocalyptic number.

It is an amenable number.

56678601 is a deficient number, since it is larger than the sum of its proper divisors (35573559).

56678601 is a wasteful number, since it uses less digits than its factorization.

56678601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 56678601 is about 7528.5191771025. The cubic root of 56678601 is about 384.1254134087.

The spelling of 56678601 in words is "fifty-six million, six hundred seventy-eight thousand, six hundred one".

Divisors: 1 3 7 21 23 43 69 129 161 301 483 903 989 2729 2967 6923 8187 19103 20769 57309 62767 117347 188301 352041 439369 821429 1318107 2464287 2698981 8096943 18892867 56678601