Search a number
-
+
87914010090 = 23510949267647
BaseRepresentation
bin101000111100000010…
…1010101010111101010
322101220212201102220210
41101320011111113222
52420021441310330
6104215342201550
76231406520214
oct1217005252752
9271825642823
1087914010090
1134314191a95
12150562832b6
1383a08cb31a
14437dc5b5b4
1524481808b0
hex14781555ea

87914010090 has 32 divisors (see below), whose sum is σ = 211013683200. Its totient is φ = 23441507264.

The previous prime is 87914010089. The next prime is 87914010101. The reversal of 87914010090 is 9001041978.

It is a happy number.

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, 194647 + ... + 462293.

It is an arithmetic number, because the mean of its divisors is an integer number (6594177600).

Almost surely, 287914010090 is an apocalyptic number.

87914010090 is an abundant number, since it is smaller than the sum of its proper divisors (123099673110).

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

87914010090 is a wasteful number, since it uses less digits than its factorization.

87914010090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278606.

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 87914010090 in words is "eighty-seven billion, nine hundred fourteen million, ten thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 10949 21898 32847 54745 65694 109490 164235 267647 328470 535294 802941 1338235 1605882 2676470 4014705 8029410 2930467003 5860934006 8791401009 14652335015 17582802018 29304670030 43957005045 87914010090