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13869317 = 711281641
BaseRepresentation
bin110100111010…
…000100000101
3222002122010102
4310322010011
512022304232
61213133445
7225613220
oct64720405
928078112
1013869317
117913250
12478a285
132b47ac7
141bb05b7
15133e662
hexd3a105

13869317 has 16 divisors (see below), whose sum is σ = 17380224. Its totient is φ = 10752000.

The previous prime is 13869313. The next prime is 13869347. The reversal of 13869317 is 71396831.

It is not a de Polignac number, because 13869317 - 22 = 13869313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13869313) 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, 21317 + ... + 21957.

It is an arithmetic number, because the mean of its divisors is an integer number (1086264).

Almost surely, 213869317 is an apocalyptic number.

It is an amenable number.

13869317 is a deficient number, since it is larger than the sum of its proper divisors (3510907).

13869317 is a wasteful number, since it uses less digits than its factorization.

13869317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940.

The product of its digits is 27216, while the sum is 38.

The square root of 13869317 is about 3724.1531923378. The cubic root of 13869317 is about 240.2619651129.

The spelling of 13869317 in words is "thirteen million, eight hundred sixty-nine thousand, three hundred seventeen".

Divisors: 1 7 11 77 281 641 1967 3091 4487 7051 21637 49357 180121 1260847 1981331 13869317