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69980908 = 22176116871
BaseRepresentation
bin1000010101111…
…01001011101100
311212200101202111
410022331023230
5120403342113
610535533404
71506553654
oct412751354
9155611674
1069980908
1136558768
121b52a264
1311662c2a
149419364
15622513d
hex42bd2ec

69980908 has 24 divisors (see below), whose sum is σ = 131804064. Its totient is φ = 32390400.

The previous prime is 69980837. The next prime is 69980917. The reversal of 69980908 is 80908996.

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, 4288 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (5491836).

Almost surely, 269980908 is an apocalyptic number.

69980908 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

69980908 is a deficient number, since it is larger than the sum of its proper divisors (61823156).

69980908 is a wasteful number, since it uses less digits than its factorization.

69980908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16953 (or 16951 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 69980908 is about 8365.4592223021. The cubic root of 69980908 is about 412.0910582030.

The spelling of 69980908 in words is "sixty-nine million, nine hundred eighty thousand, nine hundred eight".

Divisors: 1 2 4 17 34 61 68 122 244 1037 2074 4148 16871 33742 67484 286807 573614 1029131 1147228 2058262 4116524 17495227 34990454 69980908