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13486890 = 235449563
BaseRepresentation
bin110011011100…
…101100101010
3221101012112110
4303130230222
511423040030
61201023150
7222431244
oct63345452
927335473
1013486890
11768199a
124624ab6
132a42a11
141b11094
1512b61b0
hexcdcb2a

13486890 has 16 divisors (see below), whose sum is σ = 32368608. Its totient is φ = 3596496.

The previous prime is 13486871. The next prime is 13486927. The reversal of 13486890 is 9868431.

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 7 ways as a sum of consecutive naturals, for example, 224752 + ... + 224811.

It is an arithmetic number, because the mean of its divisors is an integer number (2023038).

Almost surely, 213486890 is an apocalyptic number.

13486890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13486890 is an abundant number, since it is smaller than the sum of its proper divisors (18881718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13486890 is a wasteful number, since it uses less digits than its factorization.

13486890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449573.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 13486890 is about 3672.4501358085. The cubic root of 13486890 is about 238.0330556916.

The spelling of 13486890 in words is "thirteen million, four hundred eighty-six thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 449563 899126 1348689 2247815 2697378 4495630 6743445 13486890