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13187948 = 2210513137
BaseRepresentation
bin110010010011…
…101101101100
3220211000110112
4302103231230
511334003243
61150355152
7220044554
oct62235554
926730415
1013187948
117498334
1244bbab8
132969927
141a74164
151257818
hexc93b6c

13187948 has 12 divisors (see below), whose sum is σ = 23108232. Its totient is φ = 6585600.

The previous prime is 13187939. The next prime is 13187969. The reversal of 13187948 is 84978131.

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 3 ways as a sum of consecutive naturals, for example, 2636 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (1925686).

Almost surely, 213187948 is an apocalyptic number.

It is an amenable number.

13187948 is a deficient number, since it is larger than the sum of its proper divisors (9920284).

13187948 is a wasteful number, since it uses less digits than its factorization.

13187948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192 (or 4190 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 13187948 is about 3631.5214442434. The cubic root of 13187948 is about 236.2612017495.

The spelling of 13187948 in words is "thirteen million, one hundred eighty-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 1051 2102 3137 4204 6274 12548 3296987 6593974 13187948