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13970808 = 2332296691
BaseRepresentation
bin110101010010…
…110101111000
3222021210100100
4311102311320
512034031213
61215235400
7226515135
oct65226570
928253310
1013970808
117982525
124818b60
132b82067
141bd958c
15135e773
hexd52d78

13970808 has 48 divisors (see below), whose sum is σ = 39148200. Its totient is φ = 4495680.

The previous prime is 13970783. The next prime is 13970839. The reversal of 13970808 is 80807931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1258 + ... + 5433.

Almost surely, 213970808 is an apocalyptic number.

13970808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13970808 is an abundant number, since it is smaller than the sum of its proper divisors (25177392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13970808 is a wasteful number, since it uses less digits than its factorization.

13970808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732 (or 6725 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13970808 is about 3737.7544060572. The cubic root of 13970808 is about 240.8465934864.

The spelling of 13970808 in words is "thirteen million, nine hundred seventy thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 29 36 58 72 87 116 174 232 261 348 522 696 1044 2088 6691 13382 20073 26764 40146 53528 60219 80292 120438 160584 194039 240876 388078 481752 582117 776156 1164234 1552312 1746351 2328468 3492702 4656936 6985404 13970808