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285607000 = 2353740801
BaseRepresentation
bin10001000001100…
…000010001011000
3201220102100011001
4101001200101120
51041103411000
644201314344
710035422320
oct2101402130
9656370131
10285607000
11137243848
127b7959b4
134722b833
1429d08280
151a11946a
hex11060458

285607000 has 64 divisors (see below), whose sum is σ = 763813440. Its totient is φ = 97920000.

The previous prime is 285606929. The next prime is 285607001. The reversal of 285607000 is 706582.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 285607000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285607001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13401 + ... + 27400.

It is an arithmetic number, because the mean of its divisors is an integer number (11934585).

Almost surely, 2285607000 is an apocalyptic number.

285607000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285607000 is an abundant number, since it is smaller than the sum of its proper divisors (478206440).

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

285607000 is a wasteful number, since it uses less digits than its factorization.

285607000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40829 (or 40815 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 285607000 is about 16899.9112423705. The cubic root of 285607000 is about 658.5513066958.

The spelling of 285607000 in words is "two hundred eighty-five million, six hundred seven thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 350 500 700 875 1000 1400 1750 3500 7000 40801 81602 163204 204005 285607 326408 408010 571214 816020 1020025 1142428 1428035 1632040 2040050 2284856 2856070 4080100 5100125 5712140 7140175 8160200 10200250 11424280 14280350 20400500 28560700 35700875 40801000 57121400 71401750 142803500 285607000