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13969033 = 13282657
BaseRepresentation
bin110101010010…
…011010001001
3222021200220121
4311102122021
512034002113
61215223241
7226510021
oct65223211
928250817
1013969033
117981161
124817b21
132b81300
141bd8a81
15135de8d
hexd52689

13969033 has 6 divisors (see below), whose sum is σ = 15126414. Its totient is φ = 12894336.

The previous prime is 13969001. The next prime is 13969057. The reversal of 13969033 is 33096931.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 41209 + 13927824 = 203^2 + 3732^2 .

It is not a de Polignac number, because 13969033 - 25 = 13969001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13969033.

It is not an unprimeable number, because it can be changed into a prime (13969063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41160 + ... + 41497.

It is an arithmetic number, because the mean of its divisors is an integer number (2521069).

Almost surely, 213969033 is an apocalyptic number.

13969033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13969033 is a deficient number, since it is larger than the sum of its proper divisors (1157381).

13969033 is an equidigital number, since it uses as much as digits as its factorization.

13969033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82683 (or 82670 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 13969033 is about 3737.5169564833. The cubic root of 13969033 is about 240.8363931503.

The spelling of 13969033 in words is "thirteen million, nine hundred sixty-nine thousand, thirty-three".

Divisors: 1 13 169 82657 1074541 13969033