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82975575 = 3528531297
BaseRepresentation
bin1001111001000…
…01101101010111
312210010121002110
410330201231113
5132220204300
612122242103
72025165204
oct474415527
9183117073
1082975575
1142923861
1223956333
1314262897
14b03ccab
157440550
hex4f21b57

82975575 has 24 divisors (see below), whose sum is σ = 137453008. Its totient is φ = 44167680.

The previous prime is 82975553. The next prime is 82975661. The reversal of 82975575 is 57557928.

It is not a de Polignac number, because 82975575 - 26 = 82975511 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63327 + ... + 64623.

Almost surely, 282975575 is an apocalyptic number.

82975575 is a deficient number, since it is larger than the sum of its proper divisors (54477433).

82975575 is a wasteful number, since it uses less digits than its factorization.

82975575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2158 counting only the distinct ones).

The product of its digits is 882000, while the sum is 48.

The square root of 82975575 is about 9109.0929844853. The cubic root of 82975575 is about 436.1642743628.

The spelling of 82975575 in words is "eighty-two million, nine hundred seventy-five thousand, five hundred seventy-five".

Divisors: 1 3 5 15 25 75 853 1297 2559 3891 4265 6485 12795 19455 21325 32425 63975 97275 1106341 3319023 5531705 16595115 27658525 82975575