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13989458 = 273832609
BaseRepresentation
bin110101010111…
…011001010010
3222022201221002
4311113121102
512040130313
61215502002
7226623410
oct65273122
928281832
1013989458
11799553a
124827902
132b8a6b2
141c022b0
151365058
hexd57652

13989458 has 16 divisors (see below), whose sum is σ = 24053760. Its totient is φ = 5977536.

The previous prime is 13989457. The next prime is 13989473. The reversal of 13989458 is 85498931.

It is not an unprimeable number, because it can be changed into a prime (13989457) by changing a digit.

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, 4058 + ... + 6666.

It is an arithmetic number, because the mean of its divisors is an integer number (1503360).

Almost surely, 213989458 is an apocalyptic number.

13989458 is a deficient number, since it is larger than the sum of its proper divisors (10064302).

13989458 is a wasteful number, since it uses less digits than its factorization.

13989458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its digits is 311040, while the sum is 47.

The square root of 13989458 is about 3740.2483874738. The cubic root of 13989458 is about 240.9537166562.

The spelling of 13989458 in words is "thirteen million, nine hundred eighty-nine thousand, four hundred fifty-eight".

Divisors: 1 2 7 14 383 766 2609 2681 5218 5362 18263 36526 999247 1998494 6994729 13989458