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22253057 = 532931433
BaseRepresentation
bin101010011100…
…0111000000001
31112212120110022
41110320320001
521144044212
62112543225
7360101501
oct124707001
945776408
1022253057
111161a062
127551b15
1347c1ab8
142d53a01
151e48772
hex1538e01

22253057 has 8 divisors (see below), whose sum is σ = 22766184. Its totient is φ = 21743488.

The previous prime is 22253053. The next prime is 22253069. The reversal of 22253057 is 75035222.

It can be written as a sum of positive squares in 4 ways, for example, as 14984641 + 7268416 = 3871^2 + 2696^2 .

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 22253057 - 22 = 22253053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22253053) 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, 14813 + ... + 16245.

It is an arithmetic number, because the mean of its divisors is an integer number (2845773).

Almost surely, 222253057 is an apocalyptic number.

It is an amenable number.

22253057 is a deficient number, since it is larger than the sum of its proper divisors (513127).

22253057 is a wasteful number, since it uses less digits than its factorization.

22253057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 22253057 is about 4717.3145962507. The cubic root of 22253057 is about 281.2741969635.

Adding to 22253057 its reverse (75035222), we get a palindrome (97288279).

The spelling of 22253057 in words is "twenty-two million, two hundred fifty-three thousand, fifty-seven".

Divisors: 1 53 293 1433 15529 75949 419869 22253057