Search a number
-
+
868960 = 2555431
BaseRepresentation
bin11010100001001100000
31122010222201
43110021200
5210301320
630342544
710246261
oct3241140
91563881
10868960
11543954
1235aa54
132456a1
14188968
1512270a
hexd4260

868960 has 24 divisors (see below), whose sum is σ = 2053296. Its totient is φ = 347520.

The previous prime is 868957. The next prime is 868993. The reversal of 868960 is 69868.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (85554).

2868960 is an apocalyptic number.

868960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868960 is an abundant number, since it is smaller than the sum of its proper divisors (1184336).

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

868960 is a wasteful number, since it uses less digits than its factorization.

868960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446 (or 5438 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 868960 is about 932.1802400824. The cubic root of 868960 is about 95.4259726203.

The spelling of 868960 in words is "eight hundred sixty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 5431 10862 21724 27155 43448 54310 86896 108620 173792 217240 434480 868960