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13801286 = 26900643
BaseRepresentation
bin110100101001…
…011101000110
3221222011210202
4310221131012
512013120121
61211450502
7225210662
oct64513506
927864722
1013801286
117877124
124756a32
132b22b55
141b938a2
15132940b
hexd29746

13801286 has 4 divisors (see below), whose sum is σ = 20701932. Its totient is φ = 6900642.

The previous prime is 13801283. The next prime is 13801301. The reversal of 13801286 is 68210831.

13801286 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 not an unprimeable number, because it can be changed into a prime (13801283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3450320 + ... + 3450323.

It is an arithmetic number, because the mean of its divisors is an integer number (5175483).

Almost surely, 213801286 is an apocalyptic number.

13801286 is a deficient number, since it is larger than the sum of its proper divisors (6900646).

13801286 is an equidigital number, since it uses as much as digits as its factorization.

13801286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900645.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 13801286 is about 3715.0082099506. The cubic root of 13801286 is about 239.8684811822.

The spelling of 13801286 in words is "thirteen million, eight hundred one thousand, two hundred eighty-six".

Divisors: 1 2 6900643 13801286