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13899419 = 73190403
BaseRepresentation
bin110101000001…
…011010011011
3222011011102022
4311001122123
512024240134
61213525055
7226100042
oct65013233
928134368
1013899419
117933926
1247a378b
132b58711
141bbb559
15134852e
hexd4169b

13899419 has 4 divisors (see below), whose sum is σ = 14089896. Its totient is φ = 13708944.

The previous prime is 13899401. The next prime is 13899443. The reversal of 13899419 is 91499831.

13899419 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13899419 is a prime.

It is a super-2 number, since 2×138994192 = 386387697075122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13899419.

It is not an unprimeable number, because it can be changed into a prime (13895419) 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, 95129 + ... + 95274.

It is an arithmetic number, because the mean of its divisors is an integer number (3522474).

Almost surely, 213899419 is an apocalyptic number.

13899419 is a deficient number, since it is larger than the sum of its proper divisors (190477).

13899419 is an equidigital number, since it uses as much as digits as its factorization.

13899419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190476.

The product of its digits is 69984, while the sum is 44.

The square root of 13899419 is about 3728.1924574786. The cubic root of 13899419 is about 240.4356612315.

The spelling of 13899419 in words is "thirteen million, eight hundred ninety-nine thousand, four hundred nineteen".

Divisors: 1 73 190403 13899419