Search a number
-
+
13725937 = 59232643
BaseRepresentation
bin110100010111…
…000011110001
3221211100110001
4310113003301
512003212222
61210110001
7224445211
oct64270361
927740401
1013725937
117825555
12471b301
132ac7774
141b74241
151311e27
hexd170f1

13725937 has 4 divisors (see below), whose sum is σ = 13958640. Its totient is φ = 13493236.

The previous prime is 13725931. The next prime is 13725941. The reversal of 13725937 is 73952731.

13725937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 1513-rd star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73952731 = 193892249.

It is a cyclic number.

It is not a de Polignac number, because 13725937 - 219 = 13201649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13725896 and 13725905.

It is not an unprimeable number, because it can be changed into a prime (13725931) 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, 116263 + ... + 116380.

It is an arithmetic number, because the mean of its divisors is an integer number (3489660).

Almost surely, 213725937 is an apocalyptic number.

It is an amenable number.

13725937 is a deficient number, since it is larger than the sum of its proper divisors (232703).

13725937 is an equidigital number, since it uses as much as digits as its factorization.

13725937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232702.

The product of its digits is 39690, while the sum is 37.

The square root of 13725937 is about 3704.8531684805. The cubic root of 13725937 is about 239.4311586000.

The spelling of 13725937 in words is "thirteen million, seven hundred twenty-five thousand, nine hundred thirty-seven".

Divisors: 1 59 232643 13725937