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13989552 = 243377877
BaseRepresentation
bin110101010111…
…011010110000
3222022202001120
4311113122300
512040131202
61215502240
7226623603
oct65273260
928282046
1013989552
117995615
124827980
132b8a755
141c0233a
1513650bc
hexd576b0

13989552 has 40 divisors (see below), whose sum is σ = 37121136. Its totient is φ = 4536576.

The previous prime is 13989541. The next prime is 13989581. The reversal of 13989552 is 25598931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 5714.

Almost surely, 213989552 is an apocalyptic number.

13989552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13989552 is an abundant number, since it is smaller than the sum of its proper divisors (23131584).

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

13989552 is a wasteful number, since it uses less digits than its factorization.

13989552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925 (or 7919 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The square root of 13989552 is about 3740.2609534630. The cubic root of 13989552 is about 240.9542563387.

It can be divided in two parts, 13989 and 552, that added together give a palindrome (14541).

The spelling of 13989552 in words is "thirteen million, nine hundred eighty-nine thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 37 48 74 111 148 222 296 444 592 888 1776 7877 15754 23631 31508 47262 63016 94524 126032 189048 291449 378096 582898 874347 1165796 1748694 2331592 3497388 4663184 6994776 13989552