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22456630 = 257536053
BaseRepresentation
bin101010110101…
…0100100110110
31120020220201001
41111222210312
521222103010
62121153514
7361610140
oct125524466
946226631
1022456630
1111748aa9
12762b89a
134863661
142da7c90
151e88c3a
hex156a936

22456630 has 32 divisors (see below), whose sum is σ = 47075904. Its totient is φ = 7552896.

The previous prime is 22456627. The next prime is 22456633. The reversal of 22456630 is 3665422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22456627) and next prime (22456633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22456633) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 684 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (1471122).

Almost surely, 222456630 is an apocalyptic number.

22456630 is an abundant number, since it is smaller than the sum of its proper divisors (24619274).

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

22456630 is a wasteful number, since it uses less digits than its factorization.

22456630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 22456630 is about 4738.8426857198. The cubic root of 22456630 is about 282.1293020704.

The spelling of 22456630 in words is "twenty-two million, four hundred fifty-six thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 6053 12106 30265 42371 60530 84742 211855 320809 423710 641618 1604045 2245663 3208090 4491326 11228315 22456630