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56291097 = 31723371297
BaseRepresentation
bin1101011010111…
…0111100011001
310220220212212110
43112232330121
5103402303342
65330302533
71252315662
oct326567431
9126825773
1056291097
1129858375
1216a27a49
13b87ba55
147694369
154e1dc9c
hex35aef19

56291097 has 32 divisors (see below), whose sum is σ = 85231872. Its totient is φ = 32845824.

The previous prime is 56291089. The next prime is 56291107. The reversal of 56291097 is 79019265.

It is not a de Polignac number, because 56291097 - 23 = 56291089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56291047) 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, 42753 + ... + 44049.

It is an arithmetic number, because the mean of its divisors is an integer number (2663496).

Almost surely, 256291097 is an apocalyptic number.

It is an amenable number.

56291097 is a deficient number, since it is larger than the sum of its proper divisors (28940775).

56291097 is a wasteful number, since it uses less digits than its factorization.

56291097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 56291097 is about 7502.7392997491. The cubic root of 56291097 is about 383.2480061290.

The spelling of 56291097 in words is "fifty-six million, two hundred ninety-one thousand, ninety-seven".

Divisors: 1 3 17 23 37 51 69 111 391 629 851 1173 1297 1887 2553 3891 14467 22049 29831 43401 47989 66147 89493 143967 507127 815813 1103747 1521381 2447439 3311241 18763699 56291097