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13431086 = 217937517
BaseRepresentation
bin110011001111…
…000100101110
3221021100222122
4303033010232
511414243321
61155512542
7222106454
oct63170456
927240878
1013431086
117643a79
1245b8752
132a234b6
141ad89d4
1512a48ab
hexccf12e

13431086 has 8 divisors (see below), whose sum is σ = 20259720. Its totient is φ = 6677848.

The previous prime is 13431059. The next prime is 13431109. The reversal of 13431086 is 68013431.

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

It is a super-2 number, since 2×134310862 = 360788142278792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18401 + ... + 19116.

It is an arithmetic number, because the mean of its divisors is an integer number (2532465).

Almost surely, 213431086 is an apocalyptic number.

13431086 is a deficient number, since it is larger than the sum of its proper divisors (6828634).

13431086 is a wasteful number, since it uses less digits than its factorization.

13431086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37698.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13431086 is about 3664.8446078927. The cubic root of 13431086 is about 237.7043028740.

The spelling of 13431086 in words is "thirteen million, four hundred thirty-one thousand, eighty-six".

Divisors: 1 2 179 358 37517 75034 6715543 13431086