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23280056896 = 264356914867
BaseRepresentation
bin10101101011100110…
…010111101001000000
32020002102112102102111
4111223212113221000
5340134143310041
614410020225104
71452621134665
oct255346275100
966072472374
1023280056896
119966a92348
12461853b194
1322700c66c5
1411abb8da6c
15913bce981
hex56b997a40

23280056896 has 56 divisors (see below), whose sum is σ = 47356958880. Its totient is φ = 11348585472.

The previous prime is 23280056881. The next prime is 23280056909. The reversal of 23280056896 is 69865008232.

It is a super-2 number, since 2×232800568962 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558455 + ... + 1573321.

It is an arithmetic number, because the mean of its divisors is an integer number (845659980).

Almost surely, 223280056896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23280056896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23678479440).

23280056896 is an abundant number, since it is smaller than the sum of its proper divisors (24076901984).

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

23280056896 is a wasteful number, since it uses less digits than its factorization.

23280056896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491 (or 15481 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 23280056896 in words is "twenty-three billion, two hundred eighty million, fifty-six thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 32 43 64 86 172 344 569 688 1138 1376 2276 2752 4552 9104 14867 18208 24467 29734 36416 48934 59468 97868 118936 195736 237872 391472 475744 639281 782944 951488 1278562 1565888 2557124 5114248 8459323 10228496 16918646 20456992 33837292 40913984 67674584 135349168 270698336 363750889 541396672 727501778 1455003556 2910007112 5820014224 11640028448 23280056896