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22936228 = 2277910369
BaseRepresentation
bin101011101111…
…1101010100100
31121011021120221
41113133222210
521332424403
62135334124
7365645320
oct127375244
947137527
1022936228
1111a46367
127821344
1349a0a43
143090980
152030dbd
hex15dfaa4

22936228 has 24 divisors (see below), whose sum is σ = 46457600. Its totient is φ = 9704448.

The previous prime is 22936223. The next prime is 22936231. The reversal of 22936228 is 82263922.

It is a junction number, because it is equal to n+sod(n) for n = 22936193 and 22936202.

It is not an unprimeable number, because it can be changed into a prime (22936223) 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, 2973 + ... + 7396.

Almost surely, 222936228 is an apocalyptic number.

22936228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22936228 is an abundant number, since it is smaller than the sum of its proper divisors (23521372).

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

22936228 is a wasteful number, since it uses less digits than its factorization.

22936228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459 (or 10457 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 22936228 is about 4789.1782176069. The cubic root of 22936228 is about 284.1236154322.

The spelling of 22936228 in words is "twenty-two million, nine hundred thirty-six thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 28 79 158 316 553 1106 2212 10369 20738 41476 72583 145166 290332 819151 1638302 3276604 5734057 11468114 22936228