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285714080 = 2551785713
BaseRepresentation
bin10001000001111…
…010011010100000
3201220121210000222
4101001322122200
51041120322310
644203502212
710036346441
oct2101723240
9656553028
10285714080
11137307243
127b827968
13472684b2
1429d352c8
151a13b055
hex1107a6a0

285714080 has 24 divisors (see below), whose sum is σ = 674999892. Its totient is φ = 114285568.

The previous prime is 285714071. The next prime is 285714089. The reversal of 285714080 is 80417582.

It is an interprime number because it is at equal distance from previous prime (285714071) and next prime (285714089).

It can be written as a sum of positive squares in 2 ways, for example, as 283720336 + 1993744 = 16844^2 + 1412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 285714080.

It is not an unprimeable number, because it can be changed into a prime (285714089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892697 + ... + 893016.

Almost surely, 2285714080 is an apocalyptic number.

285714080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285714080 is an abundant number, since it is smaller than the sum of its proper divisors (389285812).

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

285714080 is a wasteful number, since it uses less digits than its factorization.

285714080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785728 (or 1785720 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 285714080 is about 16903.0790094586. The cubic root of 285714080 is about 658.6335979362.

The spelling of 285714080 in words is "two hundred eighty-five million, seven hundred fourteen thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1785713 3571426 7142852 8928565 14285704 17857130 28571408 35714260 57142816 71428520 142857040 285714080