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13887016 = 23111361199
BaseRepresentation
bin110100111110…
…011000101000
3222010112101221
4310332120220
512023341031
61213351424
7226015633
oct64763050
928115357
1013887016
117925580
124798574
132b52b90
141bb6c1a
151344a11
hexd3e628

13887016 has 64 divisors (see below), whose sum is σ = 31248000. Its totient is φ = 5702400.

The previous prime is 13887001. The next prime is 13887019. The reversal of 13887016 is 61078831.

13887016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13887019) 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, 69685 + ... + 69883.

It is an arithmetic number, because the mean of its divisors is an integer number (488250).

Almost surely, 213887016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13887016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15624000).

13887016 is an abundant number, since it is smaller than the sum of its proper divisors (17360984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13887016 is a wasteful number, since it uses less digits than its factorization.

13887016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 13887016 is about 3726.5286796159. The cubic root of 13887016 is about 240.3641232061.

The spelling of 13887016 in words is "thirteen million, eight hundred eighty-seven thousand, sixteen".

Divisors: 1 2 4 8 11 13 22 26 44 52 61 88 104 122 143 199 244 286 398 488 572 671 793 796 1144 1342 1586 1592 2189 2587 2684 3172 4378 5174 5368 6344 8723 8756 10348 12139 17446 17512 20696 24278 28457 34892 48556 56914 69784 97112 113828 133529 157807 227656 267058 315614 534116 631228 1068232 1262456 1735877 3471754 6943508 13887016