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22275460 = 2251113773
BaseRepresentation
bin101010011111…
…0010110000100
31112220201012001
41110332112010
521200303320
62113235044
7360224014
oct124762604
945821161
1022275460
1111634979
127562a84
1347cc05c
142d5bc44
151e5020a
hex153e584

22275460 has 12 divisors (see below), whose sum is σ = 46778508. Its totient is φ = 8910176.

The previous prime is 22275437. The next prime is 22275493. The reversal of 22275460 is 6457222.

It can be written as a sum of positive squares in 2 ways, for example, as 5645376 + 16630084 = 2376^2 + 4078^2 .

It is a super-3 number, since 3×222754603 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556867 + ... + 556906.

It is an arithmetic number, because the mean of its divisors is an integer number (3898209).

Almost surely, 222275460 is an apocalyptic number.

22275460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22275460 is an abundant number, since it is smaller than the sum of its proper divisors (24503048).

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

22275460 is a wasteful number, since it uses less digits than its factorization.

22275460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113782 (or 1113780 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 22275460 is about 4719.6885490464. The cubic root of 22275460 is about 281.3685551214.

The spelling of 22275460 in words is "twenty-two million, two hundred seventy-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 1113773 2227546 4455092 5568865 11137730 22275460