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31022130322 = 2472298111777
BaseRepresentation
bin11100111001000100…
…000010010010010010
32222001222121111120201
4130321010002102102
51002013131132242
622130143525414
72145520520431
oct347104022222
988058544521
1031022130322
111217a202737
1260192b986a
132c05080241
1417040b7118
15c1872c4b7
hex739102492

31022130322 has 32 divisors (see below), whose sum is σ = 47816536320. Its totient is φ = 15087617280.

The previous prime is 31022130287. The next prime is 31022130343. The reversal of 31022130322 is 22303122013.

It is a self number, because there is not a number n which added to its sum of digits gives 31022130322.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17456698 + ... + 17458474.

It is an arithmetic number, because the mean of its divisors is an integer number (1494266760).

Almost surely, 231022130322 is an apocalyptic number.

31022130322 is a deficient number, since it is larger than the sum of its proper divisors (16794405998).

31022130322 is a wasteful number, since it uses less digits than its factorization.

31022130322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31022130322 its reverse (22303122013), we get a palindrome (53325252335).

The spelling of 31022130322 in words is "thirty-one billion, twenty-two million, one hundred thirty thousand, three hundred twenty-two".

Divisors: 1 2 47 94 229 458 811 1622 1777 3554 10763 21526 38117 76234 83519 167038 185719 371438 406933 813866 1441147 2882294 8728793 17457586 19125851 38251702 67733909 135467818 330022663 660045326 15511065161 31022130322