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11948304239 = 29312428731
BaseRepresentation
bin10110010000010110…
…01010011101101111
31010211200211202002122
423020023022131233
5143432231213424
65253341343155
7602042624144
oct131013123557
933750752078
1011948304239
115081562903
122395567abb
131185534611
14814c023cb
1549de5d45e
hex2c82ca76f

11948304239 has 12 divisors (see below), whose sum is σ = 12771926280. Its totient is φ = 11164129200.

The previous prime is 11948304209. The next prime is 11948304257. The reversal of 11948304239 is 93240384911.

It is a de Polignac number, because none of the positive numbers 2k-11948304239 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11948304239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11948304209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186497 + ... + 242234.

It is an arithmetic number, because the mean of its divisors is an integer number (1064327190).

Almost surely, 211948304239 is an apocalyptic number.

11948304239 is a deficient number, since it is larger than the sum of its proper divisors (823622041).

11948304239 is an equidigital number, since it uses as much as digits as its factorization.

11948304239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428822 (or 428791 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 11948304239 in words is "eleven billion, nine hundred forty-eight million, three hundred four thousand, two hundred thirty-nine".

Divisors: 1 29 31 899 961 27869 428731 12433199 13290661 385429169 412010491 11948304239