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13984839 = 331147087
BaseRepresentation
bin110101010110…
…010001000111
3222022111121000
4311112101013
512040003324
61215424343
7226604061
oct65262107
928274530
1013984839
117992020
1248250b3
132b8856b
141c00731
1513639c9
hexd56447

13984839 has 16 divisors (see below), whose sum is σ = 22602240. Its totient is φ = 8475480.

The previous prime is 13984819. The next prime is 13984849. The reversal of 13984839 is 93848931.

13984839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13984839 - 25 = 13984807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13984794 and 13984803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13984819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23247 + ... + 23840.

It is an arithmetic number, because the mean of its divisors is an integer number (1412640).

Almost surely, 213984839 is an apocalyptic number.

13984839 is a deficient number, since it is larger than the sum of its proper divisors (8617401).

13984839 is a wasteful number, since it uses less digits than its factorization.

13984839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47107 (or 47101 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 13984839 is about 3739.6308641362. The cubic root of 13984839 is about 240.9271945962.

The spelling of 13984839 in words is "thirteen million, nine hundred eighty-four thousand, eight hundred thirty-nine".

Divisors: 1 3 9 11 27 33 99 297 47087 141261 423783 517957 1271349 1553871 4661613 13984839