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13868432 = 24866777
BaseRepresentation
bin110100111001…
…110110010000
3222002120220122
4310321312100
512022242212
61213125412
7225610514
oct64716620
928076818
1013868432
117912616
124789868
132b47596
141bb0144
15133e272
hexd39d90

13868432 has 10 divisors (see below), whose sum is σ = 26870118. Its totient is φ = 6934208.

The previous prime is 13868419. The next prime is 13868443. The reversal of 13868432 is 23486831.

It is a happy number.

13868432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13868176 + 256 = 3724^2 + 16^2 .

It is a super-2 number, since 2×138684322 = 384666812277248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13868392 and 13868401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433373 + ... + 433404.

Almost surely, 213868432 is an apocalyptic number.

It is an amenable number.

13868432 is a deficient number, since it is larger than the sum of its proper divisors (13001686).

13868432 is an equidigital number, since it uses as much as digits as its factorization.

13868432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866785 (or 866779 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 13868432 is about 3724.0343714848. The cubic root of 13868432 is about 240.2568546386.

The spelling of 13868432 in words is "thirteen million, eight hundred sixty-eight thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 866777 1733554 3467108 6934216 13868432