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56319901 = 1131165161
BaseRepresentation
bin1101011011010…
…1111110011101
310220222100101021
43112311332131
5103404214101
65331044141
71252465651
oct326657635
9126870337
1056319901
1129877a80
1216a40651
13b88bbb1
1476a0a61
154e275a1
hex35b5f9d

56319901 has 8 divisors (see below), whose sum is σ = 63422208. Its totient is φ = 49548000.

The previous prime is 56319871. The next prime is 56319911. The reversal of 56319901 is 10991365.

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 56319901 - 25 = 56319869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56319911) 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, 82240 + ... + 82921.

It is an arithmetic number, because the mean of its divisors is an integer number (7927776).

Almost surely, 256319901 is an apocalyptic number.

It is an amenable number.

56319901 is a deficient number, since it is larger than the sum of its proper divisors (7102307).

56319901 is a wasteful number, since it uses less digits than its factorization.

56319901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165203.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 56319901 is about 7504.6586198174. The cubic root of 56319901 is about 383.3133639671.

The spelling of 56319901 in words is "fifty-six million, three hundred nineteen thousand, nine hundred one".

Divisors: 1 11 31 341 165161 1816771 5119991 56319901