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22901085 = 325508913
BaseRepresentation
bin101011101011…
…1000101011101
31121002111101100
41113113011131
521330313320
62134503313
7365441004
oct127270535
947074340
1022901085
1111a21a19
127804b39
13498aa4c
143081c3b
152025790
hex15d715d

22901085 has 12 divisors (see below), whose sum is σ = 39695292. Its totient is φ = 12213888.

The previous prime is 22901063. The next prime is 22901089. The reversal of 22901085 is 58010922.

It can be written as a sum of positive squares in 2 ways, for example, as 13883076 + 9018009 = 3726^2 + 3003^2 .

It is not a de Polignac number, because 22901085 - 27 = 22900957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22901089) 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, 254412 + ... + 254501.

It is an arithmetic number, because the mean of its divisors is an integer number (3307941).

Almost surely, 222901085 is an apocalyptic number.

It is an amenable number.

22901085 is a deficient number, since it is larger than the sum of its proper divisors (16794207).

22901085 is a wasteful number, since it uses less digits than its factorization.

22901085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508924 (or 508921 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 22901085 is about 4785.5078100448. The cubic root of 22901085 is about 283.9784293939.

It can be divided in two parts, 2290 and 1085, that added together give a cube (3375 = 153).

The spelling of 22901085 in words is "twenty-two million, nine hundred one thousand, eighty-five".

Divisors: 1 3 5 9 15 45 508913 1526739 2544565 4580217 7633695 22901085