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87836972676 = 223232053155017
BaseRepresentation
bin101000111001101111…
…1011101011010000100
322101201111202112110020
41101303133131122010
52414342231111201
6104203551055140
76226452643305
oct1216337353204
9271644675406
1087836972676
1134284754702
12150345114b0
13838a96755b
1443739267ac
152441514a36
hex14737dd684

87836972676 has 48 divisors (see below), whose sum is σ = 213969485184. Its totient is φ = 27992169216.

The previous prime is 87836972651. The next prime is 87836972681. The reversal of 87836972676 is 67627963878.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a self number, because there is not a number n which added to its sum of digits gives 87836972676.

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, 489120 + ... + 644136.

It is an arithmetic number, because the mean of its divisors is an integer number (4457697608).

Almost surely, 287836972676 is an apocalyptic number.

It is an amenable number.

87836972676 is an abundant number, since it is smaller than the sum of its proper divisors (126132512508).

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

87836972676 is a wasteful number, since it uses less digits than its factorization.

87836972676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157100 (or 157098 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 69.

The spelling of 87836972676 in words is "eighty-seven billion, eight hundred thirty-six million, nine hundred seventy-two thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 2053 4106 6159 8212 12318 24636 47219 94438 141657 155017 188876 283314 310034 465051 566628 620068 930102 1860204 3565391 7130782 10696173 14261564 21392346 42784692 318249901 636499802 954749703 1272999604 1909499406 3818998812 7319747723 14639495446 21959243169 29278990892 43918486338 87836972676