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13885697 = 72418231
BaseRepresentation
bin110100111110…
…000100000001
3222010110121002
4310332010001
512023320242
61213341345
7226012040
oct64760401
928113532
1013885697
117924591
124797855
132b523b7
141bb6557
151344432
hexd3e101

13885697 has 8 divisors (see below), whose sum is σ = 15937152. Its totient is φ = 11851200.

The previous prime is 13885687. The next prime is 13885717. The reversal of 13885697 is 79658831.

It is a happy number.

13885697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13885697 - 24 = 13885681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13885687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429 + ... + 5802.

It is an arithmetic number, because the mean of its divisors is an integer number (1992144).

Almost surely, 213885697 is an apocalyptic number.

It is an amenable number.

13885697 is a deficient number, since it is larger than the sum of its proper divisors (2051455).

13885697 is an equidigital number, since it uses as much as digits as its factorization.

13885697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479.

The product of its digits is 362880, while the sum is 47.

The square root of 13885697 is about 3726.3517010610. The cubic root of 13885697 is about 240.3565129723.

The spelling of 13885697 in words is "thirteen million, eight hundred eighty-five thousand, six hundred ninety-seven".

Divisors: 1 7 241 1687 8231 57617 1983671 13885697