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87618942852 = 223719591317103
BaseRepresentation
bin101000110011001111…
…1101111011110000100
322101011022111110202120
41101212133233132010
52413420422132402
6104130202005540
76221164503660
oct1214637573604
9271138443676
1087618942852
1134182677671
1214b934a68b0
13835473981c
1443529ad8a0
15242c2e83bc
hex14667ef784

87618942852 has 192 divisors, whose sum is σ = 252061286400. Its totient is φ = 23133202560.

The previous prime is 87618942847. The next prime is 87618942857. The reversal of 87618942852 is 25824981678.

It is an interprime number because it is at equal distance from previous prime (87618942847) and next prime (87618942857).

It is not an unprimeable number, because it can be changed into a prime (87618942857) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12331933 + ... + 12339035.

It is an arithmetic number, because the mean of its divisors is an integer number (1312819200).

Almost surely, 287618942852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87618942852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126030643200).

87618942852 is an abundant number, since it is smaller than the sum of its proper divisors (164442343548).

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

87618942852 is a wasteful number, since it uses less digits than its factorization.

87618942852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326 (or 7324 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The spelling of 87618942852 in words is "eighty-seven billion, six hundred eighteen million, nine hundred forty-two thousand, eight hundred fifty-two".