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85288800 = 2535235537
BaseRepresentation
bin1010001010101…
…10011101100000
312221111010020110
411011112131200
5133313220200
612244011320
72053641252
oct505263540
9187433213
1085288800
1144163813
1224690b40
131489275c
14b481cd2
15774ab50
hex5156760

85288800 has 72 divisors (see below), whose sum is σ = 277622856. Its totient is φ = 22743040.

The previous prime is 85288799. The next prime is 85288831. The reversal of 85288800 is 888258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15369 + ... + 20168.

It is an arithmetic number, because the mean of its divisors is an integer number (3855873).

Almost surely, 285288800 is an apocalyptic number.

85288800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85288800 is an abundant number, since it is smaller than the sum of its proper divisors (192334056).

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

85288800 is a wasteful number, since it uses less digits than its factorization.

85288800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35560 (or 35547 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 85288800 is about 9235.1935550913. The cubic root of 85288800 is about 440.1803668244.

The spelling of 85288800 in words is "eighty-five million, two hundred eighty-eight thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 300 400 480 600 800 1200 2400 35537 71074 106611 142148 177685 213222 284296 355370 426444 533055 568592 710740 852888 888425 1066110 1137184 1421480 1705776 1776850 2132220 2665275 2842960 3411552 3553700 4264440 5330550 5685920 7107400 8528880 10661100 14214800 17057760 21322200 28429600 42644400 85288800