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22939161 = 374872243
BaseRepresentation
bin101011110000…
…0011000011001
31121011102121120
41113200120121
521333023121
62135355453
7365660010
oct127403031
947142546
1022939161
1111a48593
127822b89
1349a218b
143091a77
152031bc6
hex15e0619

22939161 has 16 divisors (see below), whose sum is σ = 35042304. Its totient is φ = 13075344.

The previous prime is 22939139. The next prime is 22939183. The reversal of 22939161 is 16193922.

It is an interprime number because it is at equal distance from previous prime (22939139) and next prime (22939183).

It is not a de Polignac number, because 22939161 - 26 = 22939097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22934161) 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 15 ways as a sum of consecutive naturals, for example, 9106 + ... + 11348.

It is an arithmetic number, because the mean of its divisors is an integer number (2190144).

Almost surely, 222939161 is an apocalyptic number.

22939161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22939161 is a deficient number, since it is larger than the sum of its proper divisors (12103143).

22939161 is a wasteful number, since it uses less digits than its factorization.

22939161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its digits is 5832, while the sum is 33.

The square root of 22939161 is about 4789.4844190163. The cubic root of 22939161 is about 284.1357258083.

The spelling of 22939161 in words is "twenty-two million, nine hundred thirty-nine thousand, one hundred sixty-one".

Divisors: 1 3 7 21 487 1461 2243 3409 6729 10227 15701 47103 1092341 3277023 7646387 22939161