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87277996476 = 223311271109863
BaseRepresentation
bin101000101001000101…
…1001000100110111100
322100021112221121021000
41101102023020212330
52412221131341401
6104032302210300
76206554505136
oct1212213104674
9270245847230
1087277996476
1134018176600
1214ab9283990
1382cbc034c8
14431d5bc056
15240c3ec186
hex14522c89bc

87277996476 has 288 divisors, whose sum is σ = 254828851200. Its totient is φ = 25806211200.

The previous prime is 87277996427. The next prime is 87277996493. The reversal of 87277996476 is 67469977278.

87277996476 is a `hidden beast` number, since 87 + 2 + 7 + 79 + 9 + 6 + 476 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 101132821 + ... + 101133683.

It is an arithmetic number, because the mean of its divisors is an integer number (884822400).

Almost surely, 287277996476 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 87277996476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127414425600).

87277996476 is an abundant number, since it is smaller than the sum of its proper divisors (167550854724).

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

87277996476 is a wasteful number, since it uses less digits than its factorization.

87277996476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1059 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 72.

The spelling of 87277996476 in words is "eighty-seven billion, two hundred seventy-seven million, nine hundred ninety-six thousand, four hundred seventy-six".