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13989054 = 2319277443
BaseRepresentation
bin110101010111…
…010010111110
3222022201101010
4311113102332
512040122204
61215500050
7226622262
oct65272276
928281333
1013989054
117995202
124827626
132b8a461
141c020a2
151364d89
hexd574be

13989054 has 32 divisors (see below), whose sum is σ = 29623680. Its totient is φ = 4391712.

The previous prime is 13989047. The next prime is 13989067. The reversal of 13989054 is 45098931.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31357 + ... + 31799.

It is an arithmetic number, because the mean of its divisors is an integer number (925740).

Almost surely, 213989054 is an apocalyptic number.

13989054 is an abundant number, since it is smaller than the sum of its proper divisors (15634626).

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

13989054 is a wasteful number, since it uses less digits than its factorization.

13989054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 13989054 is about 3740.1943799755. The cubic root of 13989054 is about 240.9513971420.

The spelling of 13989054 in words is "thirteen million, nine hundred eighty-nine thousand, fifty-four".

Divisors: 1 2 3 6 19 38 57 114 277 443 554 831 886 1329 1662 2658 5263 8417 10526 15789 16834 25251 31578 50502 122711 245422 368133 736266 2331509 4663018 6994527 13989054