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13800806 = 26900403
BaseRepresentation
bin110100101001…
…010101100110
3221222011010222
4310221111212
512013111211
61211444342
7225206405
oct64512546
927864128
1013800806
117876828
1247566b2
132b22876
141b9363c
1513291db
hexd29566

13800806 has 4 divisors (see below), whose sum is σ = 20701212. Its totient is φ = 6900402.

The previous prime is 13800799. The next prime is 13800841. The reversal of 13800806 is 60800831.

13800806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3450200 + ... + 3450203.

It is an arithmetic number, because the mean of its divisors is an integer number (5175303).

Almost surely, 213800806 is an apocalyptic number.

13800806 is a deficient number, since it is larger than the sum of its proper divisors (6900406).

13800806 is an equidigital number, since it uses as much as digits as its factorization.

13800806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900405.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 13800806 is about 3714.9436065706. The cubic root of 13800806 is about 239.8657003253.

The spelling of 13800806 in words is "thirteen million, eight hundred thousand, eight hundred six".

Divisors: 1 2 6900403 13800806