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13887323 = 431272543
BaseRepresentation
bin110100111110…
…011101011011
3222010112211022
4310332131123
512023343243
61213353055
7226016552
oct64763533
928115738
1013887323
11792582a
12479878b
132b53068
141bb6d99
151344b68
hexd3e75b

13887323 has 8 divisors (see below), whose sum is σ = 14327808. Its totient is φ = 13452264.

The previous prime is 13887299. The next prime is 13887329. The reversal of 13887323 is 32378831.

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 13887323 - 212 = 13883227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13887329) 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, 4190 + ... + 6732.

It is an arithmetic number, because the mean of its divisors is an integer number (1790976).

Almost surely, 213887323 is an apocalyptic number.

13887323 is a deficient number, since it is larger than the sum of its proper divisors (440485).

13887323 is a wasteful number, since it uses less digits than its factorization.

13887323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713.

The product of its digits is 24192, while the sum is 35.

The square root of 13887323 is about 3726.5698705378. The cubic root of 13887323 is about 240.3658944347.

The spelling of 13887323 in words is "thirteen million, eight hundred eighty-seven thousand, three hundred twenty-three".

Divisors: 1 43 127 2543 5461 109349 322961 13887323