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85344800 = 2552106681
BaseRepresentation
bin1010001011001…
…00001000100000
312221120222001112
411011210020200
5133322013200
612245122452
72054263442
oct505441040
9187528045
1085344800
11441a18a2
12246b9428
13148b20a8
14b498492
15775c535
hex5164220

85344800 has 36 divisors (see below), whose sum is σ = 208349946. Its totient is φ = 34137600.

The previous prime is 85344781. The next prime is 85344841. The reversal of 85344800 is 844358.

It can be written as a sum of positive squares in 3 ways, for example, as 35952016 + 49392784 = 5996^2 + 7028^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52541 + ... + 54140.

Almost surely, 285344800 is an apocalyptic number.

85344800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85344800 is an abundant number, since it is smaller than the sum of its proper divisors (123005146).

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

85344800 is a wasteful number, since it uses less digits than its factorization.

85344800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106701 (or 106688 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 85344800 is about 9238.2249377248. The cubic root of 85344800 is about 440.2766854794.

The spelling of 85344800 in words is "eighty-five million, three hundred forty-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 106681 213362 426724 533405 853448 1066810 1706896 2133620 2667025 3413792 4267240 5334050 8534480 10668100 17068960 21336200 42672400 85344800