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13412861 = 711434051
BaseRepresentation
bin110011001010…
…100111111101
3221020102222122
4303022213331
511413202421
61155252325
7222002360
oct63124775
927212878
1013412861
117631310
1245aa0a5
132a18107
141ad20d7
15129e2ab
hexcca9fd

13412861 has 16 divisors (see below), whose sum is σ = 17115648. Its totient is φ = 10206000.

The previous prime is 13412843. The next prime is 13412891. The reversal of 13412861 is 16821431.

It is not a de Polignac number, because 13412861 - 210 = 13411837 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13412861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1069728).

Almost surely, 213412861 is an apocalyptic number.

13412861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13412861 is a deficient number, since it is larger than the sum of its proper divisors (3702787).

13412861 is a wasteful number, since it uses less digits than its factorization.

13412861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112.

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

The square root of 13412861 is about 3662.3573009743. The cubic root of 13412861 is about 237.5967384305.

The spelling of 13412861 in words is "thirteen million, four hundred twelve thousand, eight hundred sixty-one".

Divisors: 1 7 11 43 77 301 473 3311 4051 28357 44561 174193 311927 1219351 1916123 13412861