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23321486385 = 36553120721
BaseRepresentation
bin10101101110000100…
…011010010000110001
32020012022111021000000
4111232010122100301
5340230300031020
614414100220213
71453633235451
oct255604322061
966168437000
1023321486385
11998840999a
12462a39a669
132278870ab2
1411b3495d61
15917665090
hex56e11a431

23321486385 has 56 divisors (see below), whose sum is σ = 42751523304. Its totient is φ = 12203343360.

The previous prime is 23321486359. The next prime is 23321486413. The reversal of 23321486385 is 58368412332.

23321486385 is a `hidden beast` number, since 2 + 3 + 3 + 2 + 1 + 4 + 8 + 638 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 156950784 + 23164535601 = 12528^2 + 152199^2 .

It is not a de Polignac number, because 23321486385 - 219 = 23320962097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23321486385.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 132825 + ... + 253545.

It is an arithmetic number, because the mean of its divisors is an integer number (763420059).

Almost surely, 223321486385 is an apocalyptic number.

It is an amenable number.

23321486385 is a deficient number, since it is larger than the sum of its proper divisors (19430036919).

23321486385 is an equidigital number, since it uses as much as digits as its factorization.

23321486385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120797 (or 120782 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 23321486385 in words is "twenty-three billion, three hundred twenty-one million, four hundred eighty-six thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 53 81 135 159 243 265 405 477 729 795 1215 1431 2385 3645 4293 7155 12879 21465 38637 64395 120721 193185 362163 603605 1086489 1810815 3259467 5432445 6398213 9778401 16297335 19194639 29335203 31991065 48892005 57583917 88005609 95973195 146676015 172751751 287919585 440028045 518255253 863758755 1554765759 2591276265 4664297277 7773828795 23321486385