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13989184 = 261131641
BaseRepresentation
bin110101010111…
…010101000000
3222022201112221
4311113111000
512040123214
61215500424
7226622536
oct65272500
928281487
1013989184
117995310
124827714
132b8a531
141c02156
151364e24
hexd57540

13989184 has 56 divisors (see below), whose sum is σ = 31309056. Its totient is φ = 6144000.

The previous prime is 13989179. The next prime is 13989193. The reversal of 13989184 is 48198931.

It is a self number, because there is not a number n which added to its sum of digits gives 13989184.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21504 + ... + 22144.

Almost surely, 213989184 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 13989184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15654528).

13989184 is an abundant number, since it is smaller than the sum of its proper divisors (17319872).

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

13989184 is a wasteful number, since it uses less digits than its factorization.

13989184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 685 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The square root of 13989184 is about 3740.2117587110. The cubic root of 13989184 is about 240.9521435252.

The spelling of 13989184 in words is "thirteen million, nine hundred eighty-nine thousand, one hundred eighty-four".

Divisors: 1 2 4 8 11 16 22 31 32 44 62 64 88 124 176 248 341 352 496 641 682 704 992 1282 1364 1984 2564 2728 5128 5456 7051 10256 10912 14102 19871 20512 21824 28204 39742 41024 56408 79484 112816 158968 218581 225632 317936 437162 451264 635872 874324 1271744 1748648 3497296 6994592 13989184