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8420795616680 = 235317129952583
BaseRepresentation
bin111101010001001111010…
…0010000000110110101000
31002211000112201120120000022
41322202132202000312220
52100431242134213210
625524243214300012
71526245110513266
oct172423642006650
932730481516008
108420795616680
11275726a6611a7
12b4000b4b7608
134911016b6b15
142117d6671436
15e909e388155
hex7a89e880da8

8420795616680 has 64 divisors (see below), whose sum is σ = 19560740889600. Its totient is φ = 3259202158080.

The previous prime is 8420795616619. The next prime is 8420795616691. The reversal of 8420795616680 is 866165970248.

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8363669 + ... + 9316251.

It is an arithmetic number, because the mean of its divisors is an integer number (305636576400).

Almost surely, 28420795616680 is an apocalyptic number.

It is an amenable number.

8420795616680 is an abundant number, since it is smaller than the sum of its proper divisors (11139945272920).

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

8420795616680 is a wasteful number, since it uses less digits than its factorization.

8420795616680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959754 (or 959750 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 8420795616680 in words is "eight trillion, four hundred twenty billion, seven hundred ninety-five million, six hundred sixteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 7129 14258 28516 35645 57032 71290 142580 220999 285160 441998 883996 952583 1104995 1767992 1905166 2209990 3810332 4419980 4762915 7620664 8839960 9525830 19051660 29530073 38103320 59060146 118120292 147650365 236240584 295300730 590601460 1181202920 6790964207 13581928414 27163856828 33954821035 54327713656 67909642070 135819284140 210519890417 271638568280 421039780834 842079561668 1052599452085 1684159123336 2105198904170 4210397808340 8420795616680