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13889495 = 53837253
BaseRepresentation
bin110100111110…
…111111010111
3222010122210202
4310332333113
512023430440
61213411115
7226026104
oct64767727
928118722
1013889495
117927424
124799a9b
132b54049
141bb7aab
151345615
hexd3efd7

13889495 has 8 divisors (see below), whose sum is σ = 16713216. Its totient is φ = 11081056.

The previous prime is 13889483. The next prime is 13889503. The reversal of 13889495 is 59498831.

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

It is a cyclic number.

It is not a de Polignac number, because 13889495 - 210 = 13888471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712 + ... + 5541.

It is an arithmetic number, because the mean of its divisors is an integer number (2089152).

Almost surely, 213889495 is an apocalyptic number.

13889495 is a deficient number, since it is larger than the sum of its proper divisors (2823721).

13889495 is an equidigital number, since it uses as much as digits as its factorization.

13889495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7641.

The product of its digits is 311040, while the sum is 47.

The square root of 13889495 is about 3726.8612799513. The cubic root of 13889495 is about 240.3784249877.

The spelling of 13889495 in words is "thirteen million, eight hundred eighty-nine thousand, four hundred ninety-five".

Divisors: 1 5 383 1915 7253 36265 2777899 13889495