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85670800 = 2452214177
BaseRepresentation
bin1010001101100…
…11101110010000
312222012112020121
411012303232100
5133412431200
612300120024
72060122045
oct506635620
9188175217
1085670800
11443a4816
1224836014
13149975a7
14b5411cc
1577c3e1a
hex51b3b90

85670800 has 30 divisors (see below), whose sum is σ = 205825058. Its totient is φ = 34268160.

The previous prime is 85670797. The next prime is 85670821. The reversal of 85670800 is 807658.

It can be written as a sum of positive squares in 3 ways, for example, as 17707264 + 67963536 = 4208^2 + 8244^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106689 + ... + 107488.

Almost surely, 285670800 is an apocalyptic number.

85670800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85670800 is an abundant number, since it is smaller than the sum of its proper divisors (120154258).

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

85670800 is a wasteful number, since it uses less digits than its factorization.

85670800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214195 (or 214184 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 85670800 is about 9255.8522027958. The cubic root of 85670800 is about 440.8365627229.

The spelling of 85670800 in words is "eighty-five million, six hundred seventy thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 214177 428354 856708 1070885 1713416 2141770 3426832 4283540 5354425 8567080 10708850 17134160 21417700 42835400 85670800