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13889050 = 252725669
BaseRepresentation
bin110100111110…
…111000011010
3222010122012021
4310332320122
512023422200
61213405054
7226024600
oct64767032
928118167
1013889050
11792705a
12479978a
132b53a96
141bb7870
15134541a
hexd3ee1a

13889050 has 36 divisors (see below), whose sum is σ = 30056670. Its totient is φ = 4761120.

The previous prime is 13889041. The next prime is 13889059. The reversal of 13889050 is 5098831.

It is an interprime number because it is at equal distance from previous prime (13889041) and next prime (13889059).

It can be written as a sum of positive squares in 3 ways, for example, as 8520561 + 5368489 = 2919^2 + 2317^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13888997 and 13889015.

It is not an unprimeable number, because it can be changed into a prime (13889059) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 385 + ... + 5284.

Almost surely, 213889050 is an apocalyptic number.

13889050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13889050 is an abundant number, since it is smaller than the sum of its proper divisors (16167620).

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

13889050 is a wasteful number, since it uses less digits than its factorization.

13889050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5695 (or 5683 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 13889050 is about 3726.8015777607. The cubic root of 13889050 is about 240.3758578307.

The spelling of 13889050 in words is "thirteen million, eight hundred eighty-nine thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 5669 11338 28345 39683 56690 79366 141725 198415 277781 283450 396830 555562 992075 1388905 1984150 2777810 6944525 13889050