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22431191212 = 2217638951631
BaseRepresentation
bin10100111001000000…
…001101000010101100
32010220021020120121201
4110321000031002230
5331414341104322
614145454135244
71422602656633
oct247100150254
963807216551
1022431191212
119570905a61
1244201b1524
132166294811
14112b14451a
158b4403d27
hex53900d0ac

22431191212 has 24 divisors (see below), whose sum is σ = 41570988480. Its totient is φ = 10553998080.

The previous prime is 22431191201. The next prime is 22431191239. The reversal of 22431191212 is 21219113422.

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 7 ways as a sum of consecutive naturals, for example, 408637 + ... + 460267.

It is an arithmetic number, because the mean of its divisors is an integer number (1732124520).

Almost surely, 222431191212 is an apocalyptic number.

It is an amenable number.

22431191212 is a deficient number, since it is larger than the sum of its proper divisors (19139797268).

22431191212 is a wasteful number, since it uses less digits than its factorization.

22431191212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58041 (or 58039 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The spelling of 22431191212 in words is "twenty-two billion, four hundred thirty-one million, one hundred ninety-one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 6389 12778 25556 51631 103262 108613 206524 217226 434452 877727 1755454 3510908 329870459 659740918 1319481836 5607797803 11215595606 22431191212