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18064982256 = 2431632308919
BaseRepresentation
bin10000110100110000…
…011100000011110000
31201121222110011220220
4100310300130003300
5243444113413011
612144323133040
71206444546516
oct206460340360
951558404826
1018064982256
117730236602
123601b14180
13191b833219
14c353044b6
1570ae42506
hex434c1c0f0

18064982256 has 40 divisors (see below), whose sum is σ = 46954197120. Its totient is φ = 5984715456.

The previous prime is 18064982251. The next prime is 18064982261. The reversal of 18064982256 is 65228946081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18064982251) and next prime (18064982261).

It is a junction number, because it is equal to n+sod(n) for n = 18064982199 and 18064982208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18064982251) 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 7 ways as a sum of consecutive naturals, for example, 1146636 + ... + 1162283.

It is an arithmetic number, because the mean of its divisors is an integer number (1173854928).

Almost surely, 218064982256 is an apocalyptic number.

18064982256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18064982256 is an abundant number, since it is smaller than the sum of its proper divisors (28889214864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18064982256 is a wasteful number, since it uses less digits than its factorization.

18064982256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309093 (or 2309087 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 18064982256 in words is "eighteen billion, sixty-four million, nine hundred eighty-two thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 163 326 489 652 978 1304 1956 2608 3912 7824 2308919 4617838 6926757 9235676 13853514 18471352 27707028 36942704 55414056 110828112 376353797 752707594 1129061391 1505415188 2258122782 3010830376 4516245564 6021660752 9032491128 18064982256