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22008097 = 163135019
BaseRepresentation
bin101001111110…
…1000100100001
31112102010102201
41103331010201
521113224342
62103413201
7355031356
oct123750441
945363381
1022008097
1111472011
127454201
134737457
142ccc62d
151deadb7
hex14fd121

22008097 has 4 divisors (see below), whose sum is σ = 22143280. Its totient is φ = 21872916.

The previous prime is 22008089. The next prime is 22008101. The reversal of 22008097 is 79080022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22008097 - 23 = 22008089 is a prime.

It is a super-2 number, since 2×220080972 = 968712667122818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22008037) 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, 67347 + ... + 67672.

It is an arithmetic number, because the mean of its divisors is an integer number (5535820).

Almost surely, 222008097 is an apocalyptic number.

It is an amenable number.

22008097 is a deficient number, since it is larger than the sum of its proper divisors (135183).

22008097 is a wasteful number, since it uses less digits than its factorization.

22008097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135182.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 22008097 is about 4691.2788235192. The cubic root of 22008097 is about 280.2383047771.

The spelling of 22008097 in words is "twenty-two million, eight thousand, ninety-seven".

Divisors: 1 163 135019 22008097