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22990692 = 2231915891
BaseRepresentation
bin101011110110…
…0111101100100
31121021001022010
41113230331210
521341200232
62140434220
7366263154
oct127547544
947231263
1022990692
1111a8327a
127848970
1349bc77a
1430a6764
1520420cc
hex15ecf64

22990692 has 12 divisors (see below), whose sum is σ = 53644976. Its totient is φ = 7663560.

The previous prime is 22990691. The next prime is 22990699. The reversal of 22990692 is 29609922.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22990692.

It is not an unprimeable number, because it can be changed into a prime (22990691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957934 + ... + 957957.

Almost surely, 222990692 is an apocalyptic number.

It is an amenable number.

22990692 is an abundant number, since it is smaller than the sum of its proper divisors (30654284).

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

22990692 is a wasteful number, since it uses less digits than its factorization.

22990692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915898 (or 1915896 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 22990692 is about 4794.8609990280. The cubic root of 22990692 is about 284.3483294554.

The spelling of 22990692 in words is "twenty-two million, nine hundred ninety thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 1915891 3831782 5747673 7663564 11495346 22990692