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13739953 = 97141649
BaseRepresentation
bin110100011010…
…011110110001
3221212001200011
4310122132301
512004134303
61210254521
7224534113
oct64323661
927761604
1013739953
117835037
124727441
132b00c66
141b793b3
15131616d
hexd1a7b1

13739953 has 4 divisors (see below), whose sum is σ = 13881700. Its totient is φ = 13598208.

The previous prime is 13739941. The next prime is 13739963. The reversal of 13739953 is 35993731.

13739953 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35993731 = 53679127.

It can be written as a sum of positive squares in 2 ways, for example, as 10543009 + 3196944 = 3247^2 + 1788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13739953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13739923) by changing a digit.

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, 70728 + ... + 70921.

It is an arithmetic number, because the mean of its divisors is an integer number (3470425).

Almost surely, 213739953 is an apocalyptic number.

It is an amenable number.

13739953 is a deficient number, since it is larger than the sum of its proper divisors (141747).

13739953 is an equidigital number, since it uses as much as digits as its factorization.

13739953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141746.

The product of its digits is 76545, while the sum is 40.

The square root of 13739953 is about 3706.7442587802. The cubic root of 13739953 is about 239.5126278531.

The spelling of 13739953 in words is "thirteen million, seven hundred thirty-nine thousand, nine hundred fifty-three".

Divisors: 1 97 141649 13739953