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31064133 = 3294771107
BaseRepresentation
bin111011010000…
…0000001000101
32011110012222110
41312200001011
530423023013
63025451233
7525016662
oct166400105
964405873
1031064133
1116597a41
12a4a0b19
136588459
1441a8a69
152ad92c3
hex1da0045

31064133 has 32 divisors (see below), whose sum is σ = 44789760. Its totient is φ = 19113920.

The previous prime is 31064119. The next prime is 31064179. The reversal of 31064133 is 33146013.

It is a cyclic number.

It is not a de Polignac number, because 31064133 - 214 = 31047749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31064233) 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, 290266 + ... + 290372.

It is an arithmetic number, because the mean of its divisors is an integer number (1399680).

Almost surely, 231064133 is an apocalyptic number.

It is an amenable number.

31064133 is a deficient number, since it is larger than the sum of its proper divisors (13725627).

31064133 is a wasteful number, since it uses less digits than its factorization.

31064133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 31064133 is about 5573.5207005985. The cubic root of 31064133 is about 314.3545463072.

The spelling of 31064133 in words is "thirty-one million, sixty-four thousand, one hundred thirty-three".

Divisors: 1 3 29 47 71 87 107 141 213 321 1363 2059 3103 3337 4089 5029 6177 7597 9309 10011 15087 22791 96773 145841 220313 290319 357059 437523 660939 1071177 10354711 31064133