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22055504 = 241972551
BaseRepresentation
bin101010000100…
…0101001010000
31112111112110112
41110020221100
521121234004
62104420452
7355316522
oct124105120
945445415
1022055504
11114a4699
127477728
134752bc3
142d01a12
151e09e6e
hex1508a50

22055504 has 20 divisors (see below), whose sum is σ = 44982240. Its totient is φ = 10447200.

The previous prime is 22055503. The next prime is 22055521. The reversal of 22055504 is 40555022.

It is a self number, because there is not a number n which added to its sum of digits gives 22055504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22055503) 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, 35972 + ... + 36579.

It is an arithmetic number, because the mean of its divisors is an integer number (2249112).

Almost surely, 222055504 is an apocalyptic number.

It is an amenable number.

22055504 is an abundant number, since it is smaller than the sum of its proper divisors (22926736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22055504 is a wasteful number, since it uses less digits than its factorization.

22055504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72578 (or 72572 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 22055504 is about 4696.3287789506. The cubic root of 22055504 is about 280.4393781909.

The spelling of 22055504 in words is "twenty-two million, fifty-five thousand, five hundred four".

Divisors: 1 2 4 8 16 19 38 76 152 304 72551 145102 290204 580408 1160816 1378469 2756938 5513876 11027752 22055504