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22102169 is a prime number
BaseRepresentation
bin101010001010…
…0000010011001
31112120220110212
41110110002121
521124232134
62105420505
7355602545
oct124240231
945526425
1022102169
1111526761
12749a735
13476b20b
142d14a25
151e18bce
hex1514099

22102169 has 2 divisors, whose sum is σ = 22102170. Its totient is φ = 22102168.

The previous prime is 22102151. The next prime is 22102211. The reversal of 22102169 is 96120122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13778944 + 8323225 = 3712^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102169 - 224 = 5324953 is a prime.

It is a super-2 number, since 2×221021692 = 977011749009122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22102139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051084 + 11051085.

It is an arithmetic number, because the mean of its divisors is an integer number (11051085).

Almost surely, 222102169 is an apocalyptic number.

It is an amenable number.

22102169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102169 is an equidigital number, since it uses as much as digits as its factorization.

22102169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 22102169 is about 4701.2943962275. The cubic root of 22102169 is about 280.6370232595.

The spelling of 22102169 in words is "twenty-two million, one hundred two thousand, one hundred sixty-nine".