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22528801 = 167313431
BaseRepresentation
bin101010111110…
…0001100100001
31120101120201001
41111330030201
521231410201
62122512001
7362330431
oct125741441
946346631
1022528801
1111798249
127665601
13488a469
142dc62c1
151ea0301
hex157c321

22528801 has 8 divisors (see below), whose sum is σ = 22788864. Its totient is φ = 22270560.

The previous prime is 22528789. The next prime is 22528811. The reversal of 22528801 is 10882522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22528801 - 217 = 22397729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22528801.

It is not an unprimeable number, because it can be changed into a prime (22528811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52056 + ... + 52486.

It is an arithmetic number, because the mean of its divisors is an integer number (2848608).

Almost surely, 222528801 is an apocalyptic number.

It is an amenable number.

22528801 is a deficient number, since it is larger than the sum of its proper divisors (260063).

22528801 is a wasteful number, since it uses less digits than its factorization.

22528801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 22528801 is about 4746.4514113177. The cubic root of 22528801 is about 282.4312140982.

The spelling of 22528801 in words is "twenty-two million, five hundred twenty-eight thousand, eight hundred one".

Divisors: 1 167 313 431 52271 71977 134903 22528801