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56801601 = 3359181197
BaseRepresentation
bin1101100010101…
…1100101000001
310221212211011000
43120223211001
5104020122401
65345242213
71256543223
oct330534501
9127784130
1056801601
112a07697a
1217033369
13b9ca21c
147788413
154ec0186
hex362b941

56801601 has 32 divisors (see below), whose sum is σ = 86486400. Its totient is φ = 36832320.

The previous prime is 56801599. The next prime is 56801603. The reversal of 56801601 is 10610865.

56801601 is a `hidden beast` number, since 56 + 8 + 0 + 1 + 601 = 666.

It is an interprime number because it is at equal distance from previous prime (56801599) and next prime (56801603).

It is not a de Polignac number, because 56801601 - 21 = 56801599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (56801603) 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, 288235 + ... + 288431.

It is an arithmetic number, because the mean of its divisors is an integer number (2702700).

Almost surely, 256801601 is an apocalyptic number.

It is an amenable number.

56801601 is a deficient number, since it is larger than the sum of its proper divisors (29684799).

56801601 is a wasteful number, since it uses less digits than its factorization.

56801601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 56801601 is about 7536.6836871399. The cubic root of 56801601 is about 384.4030801615.

The spelling of 56801601 in words is "fifty-six million, eight hundred one thousand, six hundred one".

Divisors: 1 3 9 27 59 177 181 197 531 543 591 1593 1629 1773 4887 5319 10679 11623 32037 34869 35657 96111 104607 106971 288333 313821 320913 962739 2103763 6311289 18933867 56801601