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1232404013 = 71104916547
BaseRepresentation
bin100100101110100…
…1111111000101101
310011212222121111002
41021131033320231
510010443412023
6322142410045
742353155421
oct11135177055
93155877432
101232404013
11582729415
122a4890925
1316842b759
14b9966b81
15732dbb28
hex4974fe2d

1232404013 has 8 divisors (see below), whose sum is σ = 1251028800. Its totient is φ = 1213814560.

The previous prime is 1232403979. The next prime is 1232404067. The reversal of 1232404013 is 3104042321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1232404013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232404073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66206 + ... + 82752.

It is an arithmetic number, because the mean of its divisors is an integer number (156378600).

Almost surely, 21232404013 is an apocalyptic number.

It is an amenable number.

1232404013 is a deficient number, since it is larger than the sum of its proper divisors (18624787).

1232404013 is a wasteful number, since it uses less digits than its factorization.

1232404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17667.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1232404013 is about 35105.6122721140. The cubic root of 1232404013 is about 1072.1388530158.

Adding to 1232404013 its reverse (3104042321), we get a palindrome (4336446334).

The spelling of 1232404013 in words is "one billion, two hundred thirty-two million, four hundred four thousand, thirteen".

Divisors: 1 71 1049 16547 74479 1174837 17357803 1232404013