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25216988676 = 223112316350957
BaseRepresentation
bin10111011111000011…
…001011011000000100
32102002102012202022120
4113133003023120010
5403121022114201
615330131325540
71551620603265
oct273703133004
972072182276
1025216988676
11a770372910
124a791508b0
1324bb48b399
14131310c96c
159c8c85536
hex5df0cb604

25216988676 has 96 divisors (see below), whose sum is σ = 67391751168. Its totient is φ = 7264287360.

The previous prime is 25216988659. The next prime is 25216988711. The reversal of 25216988676 is 67688961252.

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 31 ways as a sum of consecutive naturals, for example, 469390 + ... + 520346.

It is an arithmetic number, because the mean of its divisors is an integer number (701997408).

Almost surely, 225216988676 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 25216988676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33695875584).

25216988676 is an abundant number, since it is smaller than the sum of its proper divisors (42174762492).

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

25216988676 is a wasteful number, since it uses less digits than its factorization.

25216988676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51161 (or 51159 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The spelling of 25216988676 in words is "twenty-five billion, two hundred sixteen million, nine hundred eighty-eight thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 11 12 22 23 33 44 46 66 69 92 132 138 163 253 276 326 489 506 652 759 978 1012 1518 1793 1956 3036 3586 3749 5379 7172 7498 10758 11247 14996 21516 22494 41239 44988 50957 82478 101914 123717 152871 164956 203828 247434 305742 494868 560527 611484 1121054 1172011 1681581 2242108 2344022 3363162 3516033 4688044 6726324 7032066 8305991 12892121 14064132 16611982 24917973 25784242 33223964 38676363 49835946 51568484 77352726 91365901 99671892 154705452 182731802 191037793 274097703 365463604 382075586 548195406 573113379 764151172 1096390812 1146226758 2101415723 2292453516 4202831446 6304247169 8405662892 12608494338 25216988676