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22944942 = 2321274719
BaseRepresentation
bin101011110000…
…1110010101110
31121011201112200
41113201302232
521333214232
62135442330
7366012606
oct127416256
947151480
1022944942
1111a51969
1278263a6
1349a49b7
143093c06
15203377c
hex15e1cae

22944942 has 12 divisors (see below), whose sum is σ = 49714080. Its totient is φ = 7648308.

The previous prime is 22944941. The next prime is 22944947. The reversal of 22944942 is 24944922.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22944897 and 22944906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22944941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 637342 + ... + 637377.

It is an arithmetic number, because the mean of its divisors is an integer number (4142840).

Almost surely, 222944942 is an apocalyptic number.

22944942 is an abundant number, since it is smaller than the sum of its proper divisors (26769138).

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

22944942 is a wasteful number, since it uses less digits than its factorization.

22944942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274727 (or 1274724 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 22944942 is about 4790.0878906342. The cubic root of 22944942 is about 284.1595925729.

The spelling of 22944942 in words is "twenty-two million, nine hundred forty-four thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 1274719 2549438 3824157 7648314 11472471 22944942