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13763971 = 131058767
BaseRepresentation
bin110100100000…
…010110000011
3221220021121201
4310200112003
512010421341
61211002031
7224664124
oct64402603
927807551
1013763971
117851091
124739317
132b0bb80
141b8404b
15131d331
hexd20583

13763971 has 4 divisors (see below), whose sum is σ = 14822752. Its totient is φ = 12705192.

The previous prime is 13763957. The next prime is 13763983. The reversal of 13763971 is 17936731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17936731 = 107167633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13763971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13763971.

It is not an unprimeable number, because it can be changed into a prime (13763921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529371 + ... + 529396.

It is an arithmetic number, because the mean of its divisors is an integer number (3705688).

Almost surely, 213763971 is an apocalyptic number.

13763971 is a deficient number, since it is larger than the sum of its proper divisors (1058781).

13763971 is a wasteful number, since it uses less digits than its factorization.

13763971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058780.

The product of its digits is 23814, while the sum is 37.

The square root of 13763971 is about 3709.9826145145. The cubic root of 13763971 is about 239.6521059044.

The spelling of 13763971 in words is "thirteen million, seven hundred sixty-three thousand, nine hundred seventy-one".

Divisors: 1 13 1058767 13763971