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84190986888 = 2334240382729
BaseRepresentation
bin100111001101000101…
…1001000001010001000
322001022102012021012120
41032122023020022020
52334410343040023
6102402105011240
76040221403161
oct1163213101210
9261272167176
1084190986888
1132783687608
1214397483b20
137c294a6208
144109606768
1522cb3bc8e3
hex139a2c8288

84190986888 has 32 divisors (see below), whose sum is σ = 210484975200. Its totient is φ = 28062661248.

The previous prime is 84190986877. The next prime is 84190986889. The reversal of 84190986888 is 88868909148.

It is not an unprimeable number, because it can be changed into a prime (84190986889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976308 + ... + 1059036.

It is an arithmetic number, because the mean of its divisors is an integer number (6577655475).

Almost surely, 284190986888 is an apocalyptic number.

It is an amenable number.

84190986888 is an abundant number, since it is smaller than the sum of its proper divisors (126293988312).

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

84190986888 is a wasteful number, since it uses less digits than its factorization.

84190986888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125141 (or 125137 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 69.

The spelling of 84190986888 in words is "eighty-four billion, one hundred ninety million, nine hundred eighty-six thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 42403 82729 84806 127209 165458 169612 248187 254418 330916 339224 496374 508836 661832 992748 1017672 1985496 3507957787 7015915574 10523873361 14031831148 21047746722 28063662296 42095493444 84190986888