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13126933 = 73179821
BaseRepresentation
bin110010000100…
…110100010101
3220200220202201
4302010310111
511330030213
61145204501
7216401641
oct62046425
926626681
1013126933
117456506
124490731
132947c21
141a59c21
1512446dd
hexc84d15

13126933 has 4 divisors (see below), whose sum is σ = 13306828. Its totient is φ = 12947040.

The previous prime is 13126921. The next prime is 13126957. The reversal of 13126933 is 33962131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2745649 + 10381284 = 1657^2 + 3222^2 .

It is a cyclic number.

It is not a de Polignac number, because 13126933 - 25 = 13126901 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126963) 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, 89838 + ... + 89983.

It is an arithmetic number, because the mean of its divisors is an integer number (3326707).

Almost surely, 213126933 is an apocalyptic number.

It is an amenable number.

13126933 is a deficient number, since it is larger than the sum of its proper divisors (179895).

13126933 is an equidigital number, since it uses as much as digits as its factorization.

13126933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179894.

The product of its digits is 2916, while the sum is 28.

The square root of 13126933 is about 3623.1109560708. The cubic root of 13126933 is about 235.8962785140.

The spelling of 13126933 in words is "thirteen million, one hundred twenty-six thousand, nine hundred thirty-three".

Divisors: 1 73 179821 13126933