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86974422447968 = 251119119811085431
BaseRepresentation
bin10011110001101001001111…
…100011011111011101100000
3102101221200012001010201202022
4103301221033203133131200
542344442104121313333
6504551255330241012
724214460160563156
oct2361511743373540
9371850161121668
1086974422447968
1125792711065030
129908286126168
13396b8643b8173
141769827c613d6
15a0c60e8cdc98
hex4f1a4f8df760

86974422447968 has 96 divisors (see below), whose sum is σ = 196645370906880. Its totient is φ = 37449940032000.

The previous prime is 86974422447961. The next prime is 86974422448013.

86974422447968 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 86974422447892 and 86974422447901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86974422447961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79586213 + ... + 80671643.

It is an arithmetic number, because the mean of its divisors is an integer number (2048389280280).

Almost surely, 286974422447968 is an apocalyptic number.

86974422447968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86974422447968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98322685453440).

86974422447968 is an abundant number, since it is smaller than the sum of its proper divisors (109670948458912).

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

86974422447968 is a wasteful number, since it uses less digits than its factorization.

86974422447968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097452 (or 1097444 counting only the distinct ones).

The product of its digits is 9364045824, while the sum is 80.

The spelling of 86974422447968 in words is "eighty-six trillion, nine hundred seventy-four billion, four hundred twenty-two million, four hundred forty-seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 16 19 22 32 38 44 76 88 152 176 209 304 352 418 608 836 1672 3344 6688 11981 23962 47924 95848 131791 191696 227639 263582 383392 455278 527164 910556 1054328 1085431 1821112 2108656 2170862 2504029 3642224 4217312 4341724 5008058 7284448 8683448 10016116 11939741 17366896 20032232 20623189 23879482 34733792 40064464 41246378 47758964 80128928 82492756 95517928 164985512 191035856 226855079 329971024 382071712 453710158 659942048 907420316 1814840632 3629681264 7259362528 13004548811 26009097622 52018195244 104036390488 143050036921 208072780976 247086427409 286100073842 416145561952 494172854818 572200147684 988345709636 1144400295368 1976691419272 2288800590736 2717950701499 3953382838544 4577601181472 5435901402998 7906765677088 10871802805996 21743605611992 43487211223984 86974422447968