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56405102 = 21321091531
BaseRepresentation
bin1101011100101…
…0110001101110
310221010200020212
43113022301232
5103414430402
65332542422
71253302235
oct327126156
9127120225
1056405102
1129925a96
1216a81a12
13b8bb900
1476c3b1c
154e42952
hex35cac6e

56405102 has 24 divisors (see below), whose sum is σ = 92517480. Its totient is φ = 25777440.

The previous prime is 56405059. The next prime is 56405117. The reversal of 56405102 is 20150465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36077 + ... + 37607.

It is an arithmetic number, because the mean of its divisors is an integer number (3854895).

Almost surely, 256405102 is an apocalyptic number.

56405102 is a deficient number, since it is larger than the sum of its proper divisors (36112378).

56405102 is a wasteful number, since it uses less digits than its factorization.

56405102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 56405102 is about 7510.3330152531. Note that the first 3 decimals coincide. The cubic root of 56405102 is about 383.5065593056.

Adding to 56405102 its reverse (20150465), we get a palindrome (76555567).

The spelling of 56405102 in words is "fifty-six million, four hundred five thousand, one hundred two".

Divisors: 1 2 13 26 109 169 218 338 1417 1531 2834 3062 18421 19903 36842 39806 166879 258739 333758 517478 2169427 4338854 28202551 56405102