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22189070 = 252218907
BaseRepresentation
bin101010010100…
…1010000001110
31112202022200102
41110221100032
521140022240
62111331102
7356414111
oct124512016
945668612
1022189070
1111585a82
127520a92
13479b937
142d38578
151e34815
hex152940e

22189070 has 8 divisors (see below), whose sum is σ = 39940344. Its totient is φ = 8875624.

The previous prime is 22189067. The next prime is 22189073. The reversal of 22189070 is 7098122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22189067) and next prime (22189073).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109444 + ... + 1109463.

It is an arithmetic number, because the mean of its divisors is an integer number (4992543).

Almost surely, 222189070 is an apocalyptic number.

22189070 is a deficient number, since it is larger than the sum of its proper divisors (17751274).

22189070 is a wasteful number, since it uses less digits than its factorization.

22189070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218914.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 22189070 is about 4710.5275713024. The cubic root of 22189070 is about 281.0043438495.

The spelling of 22189070 in words is "twenty-two million, one hundred eighty-nine thousand, seventy".

Divisors: 1 2 5 10 2218907 4437814 11094535 22189070