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87682690032 = 24371731495181
BaseRepresentation
bin101000110101001001…
…0111010101111110000
322101022202110011110020
41101222102322233300
52414033232040112
6104140400203440
76222600365550
oct1215222725760
9271282404406
1087682690032
1134205657893
1214bb0909580
1383649c9252
14435b245160
152432bdb48c
hex146a4babf0

87682690032 has 160 divisors (see below), whose sum is σ = 282943033344. Its totient is φ = 22817894400.

The previous prime is 87682690031. The next prime is 87682690057. The reversal of 87682690032 is 23009628678.

It is a super-2 number, since 2×876826900322 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87682690031) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 70519 + ... + 424662.

Almost surely, 287682690032 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 87682690032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141471516672).

87682690032 is an abundant number, since it is smaller than the sum of its proper divisors (195260343312).

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

87682690032 is a wasteful number, since it uses less digits than its factorization.

87682690032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495247 (or 495241 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 87682690032 in words is "eighty-seven billion, six hundred eighty-two million, six hundred ninety thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 17 21 24 28 31 34 42 48 51 56 62 68 84 93 102 112 119 124 136 168 186 204 217 238 248 272 336 357 372 408 434 476 496 527 651 714 744 816 868 952 1054 1302 1428 1488 1581 1736 1904 2108 2604 2856 3162 3472 3689 4216 5208 5712 6324 7378 8432 10416 11067 12648 14756 22134 25296 29512 44268 59024 88536 177072 495181 990362 1485543 1980724 2971086 3466267 3961448 5942172 6932534 7922896 8418077 10398801 11884344 13865068 15350611 16836154 20797602 23768688 25254231 27730136 30701222 33672308 41595204 46051833 50508462 55460272 58926539 61402444 67344616 83190408 92103666 101016924 107454277 117853078 122804888 134689232 166380816 176779617 184207332 202033848 214908554 235706156 245609776 260960387 322362831 353559234 368414664 404067696 429817108 471412312 521920774 644725662 707118468 736829328 782881161 859634216 942824624 1043841548 1289451324 1414236936 1565762322 1719268432 1826722709 2087683096 2578902648 2828473872 3131524644 3653445418 4175366192 5157805296 5480168127 6263049288 7306890836 10960336254 12526098576 14613781672 21920672508 29227563344 43841345016 87682690032