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31074430 = 255358631
BaseRepresentation
bin111011010001…
…0100001111110
32011110202002211
41312202201332
530423340210
63030011034
7525062002
oct166424176
964422084
1031074430
11165a4752
12a4a6a7a
13659004a
1441ac702
152adc38a
hex1da287e

31074430 has 16 divisors (see below), whose sum is σ = 56990304. Its totient is φ = 12195040.

The previous prime is 31074427. The next prime is 31074469. The reversal of 31074430 is 3447013.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28786 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (3561894).

Almost surely, 231074430 is an apocalyptic number.

31074430 is a deficient number, since it is larger than the sum of its proper divisors (25915874).

31074430 is a wasteful number, since it uses less digits than its factorization.

31074430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58691.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 31074430 is about 5574.4443669302. Note that the first 3 decimals coincide. The cubic root of 31074430 is about 314.3892760836.

The spelling of 31074430 in words is "thirty-one million, seventy-four thousand, four hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 58631 117262 293155 586310 3107443 6214886 15537215 31074430