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13890352 = 247124021
BaseRepresentation
bin110100111111…
…001100110000
3222010200222111
4310333030300
512023442402
61213415104
7226031440
oct64771460
928120874
1013890352
117928033
12479a494
132b54558
141bb8120
1513459d7
hexd3f330

13890352 has 20 divisors (see below), whose sum is σ = 30757456. Its totient is φ = 5952960.

The previous prime is 13890347. The next prime is 13890379. The reversal of 13890352 is 25309831.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 61899 + ... + 62122.

Almost surely, 213890352 is an apocalyptic number.

It is an amenable number.

13890352 is an abundant number, since it is smaller than the sum of its proper divisors (16867104).

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

13890352 is a wasteful number, since it uses less digits than its factorization.

13890352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124036 (or 124030 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 13890352 is about 3726.9762542844. The cubic root of 13890352 is about 240.3833687737.

The spelling of 13890352 in words is "thirteen million, eight hundred ninety thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 124021 248042 496084 868147 992168 1736294 1984336 3472588 6945176 13890352