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23331102320 = 245491593969
BaseRepresentation
bin10101101110101001…
…000101111001110000
32020012222120210120202
4111232221011321300
5340240230233240
614415042254332
71454111045321
oct255651057160
966188523522
1023331102320
119992887549
1246316573a8
13227a8598b6
1411b487a448
15918414315
hex56ea45e70

23331102320 has 40 divisors (see below), whose sum is σ = 54355382640. Its totient is φ = 9313418240.

The previous prime is 23331102317. The next prime is 23331102397. The reversal of 23331102320 is 2320113332.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23331102292 and 23331102301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257705 + ... + 336264.

It is an arithmetic number, because the mean of its divisors is an integer number (1358884566).

Almost surely, 223331102320 is an apocalyptic number.

23331102320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23331102320 is an abundant number, since it is smaller than the sum of its proper divisors (31024280320).

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

23331102320 is a wasteful number, since it uses less digits than its factorization.

23331102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594473 (or 594467 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23331102320 its reverse (2320113332), we get a palindrome (25651215652).

The spelling of 23331102320 in words is "twenty-three billion, three hundred thirty-one million, one hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 491 982 1964 2455 3928 4910 7856 9820 19640 39280 593969 1187938 2375876 2969845 4751752 5939690 9503504 11879380 23758760 47517520 291638779 583277558 1166555116 1458193895 2333110232 2916387790 4666220464 5832775580 11665551160 23331102320