Search a number
-
+
87964820160 = 2635713090003
BaseRepresentation
bin101000111101100011…
…1001010001011000000
322102001102022212020020
41101323013022023000
52420122443221120
6104224355213440
76232564430430
oct1217307121300
9272042285206
1087964820160
113433a936388
121506b2a7280
1383ab2ab359
1443868c62c0
15244c86a640
hex147b1ca2c0

87964820160 has 112 divisors (see below), whose sum is σ = 319186657536. Its totient is φ = 20106243072.

The previous prime is 87964820143. The next prime is 87964820173. The reversal of 87964820160 is 6102846978.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×879648201602 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6538282 + ... + 6551721.

Almost surely, 287964820160 is an apocalyptic number.

87964820160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87964820160 is an abundant number, since it is smaller than the sum of its proper divisors (231221837376).

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

87964820160 is a wasteful number, since it uses less digits than its factorization.

87964820160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13090030 (or 13090020 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 87964820160 in words is "eighty-seven billion, nine hundred sixty-four million, eight hundred twenty thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 140 160 168 192 210 224 240 280 320 336 420 448 480 560 672 840 960 1120 1344 1680 2240 3360 6720 13090003 26180006 39270009 52360012 65450015 78540018 91630021 104720024 130900030 157080036 183260042 196350045 209440048 261800060 274890063 314160072 366520084 392700090 418880096 458150105 523600120 549780126 628320144 733040168 785400180 837760192 916300210 1047200240 1099560252 1256640288 1374450315 1466080336 1570800360 1832600420 2094400480 2199120504 2513280576 2748900630 2932160672 3141600720 3665200840 4188800960 4398241008 5497801260 5864321344 6283201440 7330401680 8796482016 10995602520 12566402880 14660803360 17592964032 21991205040 29321606720 43982410080 87964820160