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13402886 = 27957349
BaseRepresentation
bin110011001000…
…001100000110
3221012221022012
4303020030012
511412343021
61155134222
7221631320
oct63101406
927187265
1013402886
117624872
1245a4372
132a13703
141acc610
15129b35b
hexcc8306

13402886 has 8 divisors (see below), whose sum is σ = 22976400. Its totient is φ = 5744088.

The previous prime is 13402877. The next prime is 13402889. The reversal of 13402886 is 68820431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402889) 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, 478661 + ... + 478688.

It is an arithmetic number, because the mean of its divisors is an integer number (2872050).

Almost surely, 213402886 is an apocalyptic number.

13402886 is a deficient number, since it is larger than the sum of its proper divisors (9573514).

13402886 is an equidigital number, since it uses as much as digits as its factorization.

13402886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957358.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 13402886 is about 3660.9952198822. The cubic root of 13402886 is about 237.5378244466.

The spelling of 13402886 in words is "thirteen million, four hundred two thousand, eight hundred eighty-six".

Divisors: 1 2 7 14 957349 1914698 6701443 13402886