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22160907 = 3213811783
BaseRepresentation
bin101010010001…
…0011000001011
31112200220001100
41110202120023
521133122112
62110552443
7356236026
oct124423013
945626040
1022160907
11115668aa
127508723
13478bb82
142d2c1bd
151e2b2dc
hex152260b

22160907 has 12 divisors (see below), whose sum is σ = 32051344. Its totient is φ = 14754960.

The previous prime is 22160893. The next prime is 22160933. The reversal of 22160907 is 70906122.

It is not a de Polignac number, because 22160907 - 216 = 22095371 is a prime.

It is a super-2 number, since 2×221609072 = 982211598125298, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (22160407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11538 + ... + 13320.

Almost surely, 222160907 is an apocalyptic number.

22160907 is a deficient number, since it is larger than the sum of its proper divisors (9890437).

22160907 is a wasteful number, since it uses less digits than its factorization.

22160907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 22160907 is about 4707.5372542339. The cubic root of 22160907 is about 280.8854072756.

The spelling of 22160907 in words is "twenty-two million, one hundred sixty thousand, nine hundred seven".

Divisors: 1 3 9 1381 1783 4143 5349 12429 16047 2462323 7386969 22160907