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22921098956 = 2271225366809
BaseRepresentation
bin10101010110001101…
…000011011011001100
32012011102002110200222
4111112031003123030
5333420300131311
614310234410512
71441002061250
oct252615033314
965142073628
1022921098956
1197a23a9998
124538290a38
132213925062
141176230260
158e2426adb
hex5563436cc

22921098956 has 24 divisors (see below), whose sum is σ = 45846625440. Its totient is φ = 9822379392.

The previous prime is 22921098953. The next prime is 22921099037. The reversal of 22921098956 is 65989012922.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22921098898 and 22921098907.

It is not an unprimeable number, because it can be changed into a prime (22921098953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309680 + ... + 376488.

It is an arithmetic number, because the mean of its divisors is an integer number (1910276060).

Almost surely, 222921098956 is an apocalyptic number.

It is an amenable number.

22921098956 is an abundant number, since it is smaller than the sum of its proper divisors (22925526484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22921098956 is a wasteful number, since it uses less digits than its factorization.

22921098956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79073 (or 79071 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 22921098956 in words is "twenty-two billion, nine hundred twenty-one million, ninety-eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 12253 24506 49012 66809 85771 133618 171542 267236 343084 467663 935326 1870652 818610677 1637221354 3274442708 5730274739 11460549478 22921098956