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13831834 = 253130489
BaseRepresentation
bin110100110000…
…111010011010
3222000201201011
4310300322122
512020104314
61212244134
7225366022
oct64607232
928021634
1013831834
117898075
12477064a
132b33a23
141ba0a82
1513334c4
hexd30e9a

13831834 has 8 divisors (see below), whose sum is σ = 21139380. Its totient is φ = 6785376.

The previous prime is 13831823. The next prime is 13831837. The reversal of 13831834 is 43813831.

13831834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13667809 + 164025 = 3697^2 + 405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13831796 and 13831805.

It is not an unprimeable number, because it can be changed into a prime (13831837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65139 + ... + 65350.

Almost surely, 213831834 is an apocalyptic number.

13831834 is a deficient number, since it is larger than the sum of its proper divisors (7307546).

13831834 is a wasteful number, since it uses less digits than its factorization.

13831834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130544.

The product of its digits is 6912, while the sum is 31.

The square root of 13831834 is about 3719.1173684088. The cubic root of 13831834 is about 240.0453270870.

The spelling of 13831834 in words is "thirteen million, eight hundred thirty-one thousand, eight hundred thirty-four".

Divisors: 1 2 53 106 130489 260978 6915917 13831834