Search a number
-
+
285550360 = 23517419927
BaseRepresentation
bin10001000001010…
…010011100011000
3201220022110110021
4101001102130120
51041100102420
644200200224
710035065224
oct2101223430
9656273407
10285550360
11137205237
127b769074
134720bb14
1429cd1784
151a1077aa
hex11052718

285550360 has 32 divisors (see below), whose sum is σ = 680283360. Its totient is φ = 107501056.

The previous prime is 285550357. The next prime is 285550367. The reversal of 285550360 is 63055582.

It is a happy number.

285550360 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2855503602 = 163078016192259200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285550367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209284 + ... + 210643.

It is an arithmetic number, because the mean of its divisors is an integer number (21258855).

Almost surely, 2285550360 is an apocalyptic number.

285550360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285550360 is an abundant number, since it is smaller than the sum of its proper divisors (394733000).

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

285550360 is a wasteful number, since it uses less digits than its factorization.

285550360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419955 (or 419951 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 285550360 is about 16898.2354108351. The cubic root of 285550360 is about 658.5077704006.

The spelling of 285550360 in words is "two hundred eighty-five million, five hundred fifty thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 419927 839854 1679708 2099635 3359416 4199270 7138759 8398540 14277518 16797080 28555036 35693795 57110072 71387590 142775180 285550360