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13789937 = 73721439
BaseRepresentation
bin110100100110…
…101011110001
3221221121020102
4310212223301
512012234222
61211322145
7225132620
oct64465361
927847212
1013789937
117869647
124750355
132b1a935
141b8d6b7
151325d92
hexd26af1

13789937 has 12 divisors (see below), whose sum is σ = 16208640. Its totient is φ = 11492496.

The previous prime is 13789933. The next prime is 13789939. The reversal of 13789937 is 73998731.

It is not a de Polignac number, because 13789937 - 22 = 13789933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13789891 and 13789900.

It is not an unprimeable number, because it can be changed into a prime (13789933) by changing a digit.

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, 8864 + ... + 10302.

It is an arithmetic number, because the mean of its divisors is an integer number (1350720).

Almost surely, 213789937 is an apocalyptic number.

It is an amenable number.

13789937 is a deficient number, since it is larger than the sum of its proper divisors (2418703).

13789937 is an equidigital number, since it uses as much as digits as its factorization.

13789937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1483 counting only the distinct ones).

The product of its digits is 285768, while the sum is 47.

The square root of 13789937 is about 3713.4804429268. The cubic root of 13789937 is about 239.8027140279.

The spelling of 13789937 in words is "thirteen million, seven hundred eighty-nine thousand, nine hundred thirty-seven".

Divisors: 1 7 37 259 1369 1439 9583 10073 53243 372701 1969991 13789937