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22929992 = 2316932
BaseRepresentation
bin101011101111…
…0001001001000
31121010222000222
41113132021020
521332224432
62135245212
7365621201
oct127361110
947128028
1022929992
1111a41708
127819808
13499ac57
14308c5a8
15202e112
hex15de248

22929992 has 12 divisors (see below), whose sum is σ = 43019145. Its totient is φ = 11458224.

The previous prime is 22929989. The next prime is 22929997. The reversal of 22929992 is 29992922.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 22600516 + 329476 = 4754^2 + 574^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3386.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22929997) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12698 + ... + 14390.

Almost surely, 222929992 is an apocalyptic number.

It is an amenable number.

22929992 is a deficient number, since it is larger than the sum of its proper divisors (20089153).

22929992 is an frugal number, since it uses more digits than its factorization.

22929992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392 (or 1695 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 22929992 is about 4788.5271221953. The cubic root of 22929992 is about 284.0978635160.

The spelling of 22929992 in words is "twenty-two million, nine hundred twenty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 1693 3386 6772 13544 2866249 5732498 11464996 22929992