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31830314 = 2163251389
BaseRepresentation
bin111100101101…
…1000100101010
32012220010222112
41321123010222
531122032224
63054122322
7534360515
oct171330452
965803875
1031830314
1116a7064a
12a7b03a2
136796109
144327d7c
152bdb30e
hex1e5b12a

31830314 has 16 divisors (see below), whose sum is σ = 48353760. Its totient is φ = 15714000.

The previous prime is 31830311. The next prime is 31830319. The reversal of 31830314 is 41303813.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31830314.

It is not an unprimeable number, because it can be changed into a prime (31830311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81632 + ... + 82020.

It is an arithmetic number, because the mean of its divisors is an integer number (3022110).

Almost surely, 231830314 is an apocalyptic number.

31830314 is a deficient number, since it is larger than the sum of its proper divisors (16523446).

31830314 is a wasteful number, since it uses less digits than its factorization.

31830314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 31830314 is about 5641.8360486636. The cubic root of 31830314 is about 316.9180494506.

The spelling of 31830314 in words is "thirty-one million, eight hundred thirty thousand, three hundred fourteen".

Divisors: 1 2 163 251 326 389 502 778 40913 63407 81826 97639 126814 195278 15915157 31830314