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22428653 = 137921839
BaseRepresentation
bin101010110001…
…1101111101101
31120012111022212
41111203233231
521220204103
62120420205
7361432442
oct125435755
946174285
1022428653
1111729a85
127617665
1348539c0
142d9b9c9
151e807d8
hex1563bed

22428653 has 8 divisors (see below), whose sum is σ = 24460800. Its totient is φ = 20440368.

The previous prime is 22428643. The next prime is 22428709. The reversal of 22428653 is 35682422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22428653 - 218 = 22166509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22428613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9893 + ... + 11946.

It is an arithmetic number, because the mean of its divisors is an integer number (3057600).

Almost surely, 222428653 is an apocalyptic number.

It is an amenable number.

22428653 is a deficient number, since it is larger than the sum of its proper divisors (2032147).

22428653 is a wasteful number, since it uses less digits than its factorization.

22428653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21931.

The product of its digits is 23040, while the sum is 32.

The square root of 22428653 is about 4735.8898846996. The cubic root of 22428653 is about 282.0120922669.

The spelling of 22428653 in words is "twenty-two million, four hundred twenty-eight thousand, six hundred fifty-three".

Divisors: 1 13 79 1027 21839 283907 1725281 22428653