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22942152 = 2332318641
BaseRepresentation
bin101011110000…
…1000111001000
31121011120201100
41113201013020
521333122102
62135421400
7366001512
oct127410710
947146640
1022942152
1111a4a862
127824860
1349a364c
143092bb2
152032a1c
hex15e11c8

22942152 has 24 divisors (see below), whose sum is σ = 62135190. Its totient is φ = 7647360.

The previous prime is 22942151. The next prime is 22942181. The reversal of 22942152 is 25124922.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14333796 + 8608356 = 3786^2 + 2934^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×229421522 = 1052684676782208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22942151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159249 + ... + 159392.

Almost surely, 222942152 is an apocalyptic number.

It is an amenable number.

22942152 is an abundant number, since it is smaller than the sum of its proper divisors (39193038).

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

22942152 is a wasteful number, since it uses less digits than its factorization.

22942152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318653 (or 318646 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 22942152 is about 4789.7966553915. The cubic root of 22942152 is about 284.1480746038.

The spelling of 22942152 in words is "twenty-two million, nine hundred forty-two thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 318641 637282 955923 1274564 1911846 2549128 2867769 3823692 5735538 7647384 11471076 22942152