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13800715 = 52760143
BaseRepresentation
bin110100101001…
…010100001011
3221222011000121
4310221110023
512013110330
61211444111
7225206215
oct64512413
927864017
1013800715
117876755
124756637
132b22806
141b935b5
15132917a
hexd2950b

13800715 has 4 divisors (see below), whose sum is σ = 16560864. Its totient is φ = 11040568.

The previous prime is 13800679. The next prime is 13800737. The reversal of 13800715 is 51700831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13800715 - 29 = 13800203 is a prime.

It is a super-2 number, since 2×138007152 = 380919469022450, which contains 22 as substring.

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 13800715.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380067 + ... + 1380076.

It is an arithmetic number, because the mean of its divisors is an integer number (4140216).

Almost surely, 213800715 is an apocalyptic number.

13800715 is a deficient number, since it is larger than the sum of its proper divisors (2760149).

13800715 is an equidigital number, since it uses as much as digits as its factorization.

13800715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760148.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 13800715 is about 3714.9313587198. The cubic root of 13800715 is about 239.8651731139.

The spelling of 13800715 in words is "thirteen million, eight hundred thousand, seven hundred fifteen".

Divisors: 1 5 2760143 13800715