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87633297052 = 2277342873433
BaseRepresentation
bin101000110011101011…
…0011111111010011100
322101012022111202000121
41101213112133322130
52413433111001202
6104131433404324
76221430506650
oct1214726377234
9271168452017
1087633297052
113418a791144
1214b982696a4
1383576c4232
144354868a60
15242d6d1537
hex146759fe9c

87633297052 has 24 divisors (see below), whose sum is σ = 177667510496. Its totient is φ = 37042645248.

The previous prime is 87633296969. The next prime is 87633297077. The reversal of 87633297052 is 25079233678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21434673 + ... + 21438760.

Almost surely, 287633297052 is an apocalyptic number.

It is an amenable number.

87633297052 is an abundant number, since it is smaller than the sum of its proper divisors (90034213444).

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

87633297052 is a wasteful number, since it uses less digits than its factorization.

87633297052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42873517 (or 42873515 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 87633297052 in words is "eighty-seven billion, six hundred thirty-three million, two hundred ninety-seven thousand, fifty-two".

Divisors: 1 2 4 7 14 28 73 146 292 511 1022 2044 42873433 85746866 171493732 300114031 600228062 1200456124 3129760609 6259521218 12519042436 21908324263 43816648526 87633297052