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275071972 = 22712797681
BaseRepresentation
bin10000011001010…
…100001111100100
3201011121002210211
4100121110033210
51030404300342
643143425204
76550034050
oct2031241744
9634532724
10275071972
111312a870a
1278155204
1344cb05a6
1428764c60
1519237c17
hex106543e4

275071972 has 24 divisors (see below), whose sum is σ = 550645760. Its totient is φ = 117780480.

The previous prime is 275071969. The next prime is 275071981. The reversal of 275071972 is 279170572.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31972 + ... + 39652.

Almost surely, 2275071972 is an apocalyptic number.

It is an amenable number.

275071972 is an abundant number, since it is smaller than the sum of its proper divisors (275573788).

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

275071972 is a wasteful number, since it uses less digits than its factorization.

275071972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971 (or 8969 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 275071972 is about 16585.2938472612. The cubic root of 275071972 is about 650.3524494879.

The spelling of 275071972 in words is "two hundred seventy-five million, seventy-one thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 1279 2558 5116 7681 8953 15362 17906 30724 35812 53767 107534 215068 9823999 19647998 39295996 68767993 137535986 275071972