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85278937497600 = 21435271123149263
BaseRepresentation
bin10011011000111110001100…
…110001101100000000000000
3102011221120211210002012020210
4103120332030301230000000
542134202230444410400
6501212334131434120
723651125366361460
oct2330761461540000
9364846753065223
1085278937497600
112519965a000120
129693767755940
133877a001c82c2
14170b746019ba0
159cd47a672950
hex4d8f8cc6c000

85278937497600 has 2880 divisors, whose sum is σ = 370711472947200. Its totient is φ = 16772077977600.

The previous prime is 85278937497563. The next prime is 85278937497613. The reversal of 85278937497600 is 679473987258.

85278937497600 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 324254515069 + ... + 324254515331.

It is an arithmetic number, because the mean of its divisors is an integer number (128719261440).

Almost surely, 285278937497600 is an apocalyptic number.

85278937497600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85278937497600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185355736473600).

85278937497600 is an abundant number, since it is smaller than the sum of its proper divisors (285432535449600).

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

85278937497600 is a wasteful number, since it uses less digits than its factorization.

85278937497600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 1280240640, while the sum is 75.

The spelling of 85278937497600 in words is "eighty-five trillion, two hundred seventy-eight billion, nine hundred thirty-seven million, four hundred ninety-seven thousand, six hundred".