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22117159 = 197191619
BaseRepresentation
bin101010001011…
…1101100100111
31112121200001001
41110113230213
521130222114
62110014131
7355664341
oct124275447
945550031
1022117159
1111536a49
1274a7347
134774c9c
142d1a291
151e1d374
hex1517b27

22117159 has 8 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 20911032.

The previous prime is 22117103. The next prime is 22117171. The reversal of 22117159 is 95171122.

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

It is a cyclic number.

It is not a de Polignac number, because 22117159 - 27 = 22117031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112159) 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, 12852 + ... + 14470.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 222117159 is an apocalyptic number.

22117159 is a deficient number, since it is larger than the sum of its proper divisors (1210841).

22117159 is a wasteful number, since it uses less digits than its factorization.

22117159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

The product of its digits is 1260, while the sum is 28.

The square root of 22117159 is about 4702.8883678012. Note that the first 3 decimals coincide. The cubic root of 22117159 is about 280.7004529062.

The spelling of 22117159 in words is "twenty-two million, one hundred seventeen thousand, one hundred fifty-nine".

Divisors: 1 19 719 1619 13661 30761 1164061 22117159