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22710268 = 227811081
BaseRepresentation
bin101011010100…
…0011111111100
31120201210122001
41112220133330
521303212033
62130432044
7364014460
oct126503774
946653561
1022710268
1111901619
127732624
134921c39
1430324a0
151ed8e7d
hex15a87fc

22710268 has 12 divisors (see below), whose sum is σ = 45420592. Its totient is φ = 9732960.

The previous prime is 22710257. The next prime is 22710287. The reversal of 22710268 is 86201722.

22710268 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 811081 = 22710268 / (2 + 2 + 7 + 1 + 0 + 2 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405513 + ... + 405568.

Almost surely, 222710268 is an apocalyptic number.

22710268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22710268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22710268 is a wasteful number, since it uses less digits than its factorization.

22710268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811092 (or 811090 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 22710268 is about 4765.5291416589. The cubic root of 22710268 is about 283.1875045026.

The spelling of 22710268 in words is "twenty-two million, seven hundred ten thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 14 28 811081 1622162 3244324 5677567 11355134 22710268