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80706904 = 2361165383
BaseRepresentation
bin1001100111101…
…11110101011000
312121212100001121
410303313311120
5131130110104
612001455024
71666666045
oct463676530
9177770047
1080706904
1141614323
1223041474
131394a085
14aa0c1cc
157143254
hex4cf7d58

80706904 has 16 divisors (see below), whose sum is σ = 153807120. Its totient is φ = 39691680.

The previous prime is 80706887. The next prime is 80706917. The reversal of 80706904 is 40960708.

It is a self number, because there is not a number n which added to its sum of digits gives 80706904.

It is a congruent number.

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, 82204 + ... + 83179.

It is an arithmetic number, because the mean of its divisors is an integer number (9612945).

Almost surely, 280706904 is an apocalyptic number.

It is an amenable number.

80706904 is a deficient number, since it is larger than the sum of its proper divisors (73100216).

80706904 is a wasteful number, since it uses less digits than its factorization.

80706904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165450 (or 165446 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 80706904 is about 8983.7021321947. The cubic root of 80706904 is about 432.1523668070.

The spelling of 80706904 in words is "eighty million, seven hundred six thousand, nine hundred four".

Divisors: 1 2 4 8 61 122 244 488 165383 330766 661532 1323064 10088363 20176726 40353452 80706904