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129885676 = 22250312973
BaseRepresentation
bin1111011110111…
…10010111101100
3100001101212122121
413233132113230
5231222320201
620515522324
73135003304
oct757362754
9301355577
10129885676
1167354038
12375b93a4
1320ba873b
1413370604
15b6099a1
hex7bde5ec

129885676 has 12 divisors (see below), whose sum is σ = 227408272. Its totient is φ = 64911888.

The previous prime is 129885673. The next prime is 129885713. The reversal of 129885676 is 676588921.

It is not an unprimeable number, because it can be changed into a prime (129885673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3526 + ... + 16498.

Almost surely, 2129885676 is an apocalyptic number.

It is an amenable number.

129885676 is a deficient number, since it is larger than the sum of its proper divisors (97522596).

129885676 is a wasteful number, since it uses less digits than its factorization.

129885676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15480 (or 15478 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 129885676 is about 11396.7397092326. The cubic root of 129885676 is about 506.4311603639.

The spelling of 129885676 in words is "one hundred twenty-nine million, eight hundred eighty-five thousand, six hundred seventy-six".

Divisors: 1 2 4 2503 5006 10012 12973 25946 51892 32471419 64942838 129885676