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85280408 = 2310660051
BaseRepresentation
bin1010001010101…
…00011010011000
312221110200201122
411011110122120
5133312433113
612243504412
72053604633
oct505243230
9187420648
1085280408
1144158484
1224688108
131488b9a5
14b47cc1a
157748408
hex5154698

85280408 has 8 divisors (see below), whose sum is σ = 159900780. Its totient is φ = 42640200.

The previous prime is 85280399. The next prime is 85280413. The reversal of 85280408 is 80408258.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330018 + ... + 5330033.

Almost surely, 285280408 is an apocalyptic number.

It is an amenable number.

85280408 is a deficient number, since it is larger than the sum of its proper divisors (74620372).

85280408 is a wasteful number, since it uses less digits than its factorization.

85280408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10660057 (or 10660053 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 85280408 is about 9234.7391950179. The cubic root of 85280408 is about 440.1659291538.

The spelling of 85280408 in words is "eighty-five million, two hundred eighty thousand, four hundred eight".

Divisors: 1 2 4 8 10660051 21320102 42640204 85280408