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1230033013 = 11111821183
BaseRepresentation
bin100100101010000…
…1101000001110101
310011201112011002021
41021110031001311
510004342024023
6322015513141
742324052036
oct11124150165
93151464067
101230033013
1158135a010
122a3b287b1
13167aab4b1
14b950aa8d
1572ebe35d
hex4950d075

1230033013 has 4 divisors (see below), whose sum is σ = 1341854208. Its totient is φ = 1118211820.

The previous prime is 1230032987. The next prime is 1230033029. The reversal of 1230033013 is 3103300321.

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.

It is not a de Polignac number, because 1230033013 - 25 = 1230032981 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 (1230033043) 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, 55910581 + ... + 55910602.

It is an arithmetic number, because the mean of its divisors is an integer number (335463552).

Almost surely, 21230033013 is an apocalyptic number.

It is an amenable number.

1230033013 is a deficient number, since it is larger than the sum of its proper divisors (111821195).

1230033013 is a wasteful number, since it uses less digits than its factorization.

1230033013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111821194.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1230033013 is about 35071.8264850863. The cubic root of 1230033013 is about 1071.4508553748.

Adding to 1230033013 its reverse (3103300321), we get a palindrome (4333333334).

The spelling of 1230033013 in words is "one billion, two hundred thirty million, thirty-three thousand, thirteen".

Divisors: 1 11 111821183 1230033013