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22160149 = 112014559
BaseRepresentation
bin101010010001…
…0001100010101
31112200212000021
41110202030111
521133111044
62110545141
7356233564
oct124421425
945625007
1022160149
1111566280
1275081b1
13478b71b
142d2bbdb
151e2ae84
hex1522315

22160149 has 4 divisors (see below), whose sum is σ = 24174720. Its totient is φ = 20145580.

The previous prime is 22160123. The next prime is 22160153. The reversal of 22160149 is 94106122.

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 22160149 - 213 = 22151957 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 (22160249) 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, 1007269 + ... + 1007290.

It is an arithmetic number, because the mean of its divisors is an integer number (6043680).

Almost surely, 222160149 is an apocalyptic number.

It is an amenable number.

22160149 is a deficient number, since it is larger than the sum of its proper divisors (2014571).

22160149 is a wasteful number, since it uses less digits than its factorization.

22160149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014570.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 22160149 is about 4707.4567443578. The cubic root of 22160149 is about 280.8822047357.

The spelling of 22160149 in words is "twenty-two million, one hundred sixty thousand, one hundred forty-nine".

Divisors: 1 11 2014559 22160149