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13976713 = 37377749
BaseRepresentation
bin110101010100…
…010010001001
3222022002110001
4311110102021
512034223323
61215323001
7226541302
oct65242211
928262401
1013976713
117986a03
124820461
132b8495a
141bdb7a9
1513613ad
hexd54489

13976713 has 4 divisors (see below), whose sum is σ = 14354500. Its totient is φ = 13598928.

The previous prime is 13976701. The next prime is 13976717. The reversal of 13976713 is 31767931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31767931 = 132443687.

It can be written as a sum of positive squares in 2 ways, for example, as 7382089 + 6594624 = 2717^2 + 2568^2 .

It is a cyclic number.

It is not a de Polignac number, because 13976713 - 25 = 13976681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 377749 = 13976713 / (1 + 3 + 9 + 7 + 6 + 7 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13976717) 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, 188838 + ... + 188911.

It is an arithmetic number, because the mean of its divisors is an integer number (3588625).

Almost surely, 213976713 is an apocalyptic number.

It is an amenable number.

13976713 is a deficient number, since it is larger than the sum of its proper divisors (377787).

13976713 is an equidigital number, since it uses as much as digits as its factorization.

13976713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377786.

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

The square root of 13976713 is about 3738.5442353943. The cubic root of 13976713 is about 240.8805213453.

The spelling of 13976713 in words is "thirteen million, nine hundred seventy-six thousand, seven hundred thirteen".

Divisors: 1 37 377749 13976713