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13888602 = 23271361139
BaseRepresentation
bin110100111110…
…110001011010
3222010121120200
4310332301122
512023413402
61213403030
7226023360
oct64766132
928117520
1013888602
117926792
124799476
132b53810
141bb7630
15134521c
hexd3ec5a

13888602 has 96 divisors (see below), whose sum is σ = 37914240. Its totient is φ = 3576960.

The previous prime is 13888591. The next prime is 13888603. The reversal of 13888602 is 20688831.

It is a hoax number, since the sum of its digits (36) 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 (13888603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99849 + ... + 99987.

It is an arithmetic number, because the mean of its divisors is an integer number (394940).

Almost surely, 213888602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13888602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18957120).

13888602 is an abundant number, since it is smaller than the sum of its proper divisors (24025638).

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

13888602 is a wasteful number, since it uses less digits than its factorization.

13888602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 13888602 is about 3726.7414721174. The cubic root of 13888602 is about 240.3732733117.

The spelling of 13888602 in words is "thirteen million, eight hundred eighty-eight thousand, six hundred two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 61 63 78 91 117 122 126 139 182 183 234 273 278 366 417 427 546 549 793 819 834 854 973 1098 1251 1281 1586 1638 1807 1946 2379 2502 2562 2919 3614 3843 4758 5421 5551 5838 7137 7686 8479 8757 10842 11102 12649 14274 16263 16653 16958 17514 25298 25437 32526 33306 37947 49959 50874 59353 75894 76311 99918 110227 113841 118706 152622 178059 220454 227682 330681 356118 534177 661362 771589 992043 1068354 1543178 1984086 2314767 4629534 6944301 13888602