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22813308 = 2232790529
BaseRepresentation
bin101011100000…
…1101001111100
31120221000222100
41113001221330
521320011213
62132545100
7364624050
oct127015174
946830870
1022813308
1111971a81
127782190
134959acb
14305bc60
152009773
hex15c1a7c

22813308 has 36 divisors (see below), whose sum is σ = 65905840. Its totient is φ = 6518016.

The previous prime is 22813279. The next prime is 22813313. The reversal of 22813308 is 80331822.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45013 + ... + 45516.

Almost surely, 222813308 is an apocalyptic number.

22813308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22813308 is an abundant number, since it is smaller than the sum of its proper divisors (43092532).

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

22813308 is a wasteful number, since it uses less digits than its factorization.

22813308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90546 (or 90541 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22813308 is about 4776.3278781926. The cubic root of 22813308 is about 283.6151469023.

The spelling of 22813308 in words is "twenty-two million, eight hundred thirteen thousand, three hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 90529 181058 271587 362116 543174 633703 814761 1086348 1267406 1629522 1901109 2534812 3259044 3802218 5703327 7604436 11406654 22813308