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868944 = 24343421
BaseRepresentation
bin11010100001001010000
31122010222010
43110021100
5210301234
630342520
710246236
oct3241120
91563863
10868944
1154393a
1235aa40
1324568b
14188956
151226e9
hexd4250

868944 has 40 divisors (see below), whose sum is σ = 2302432. Its totient is φ = 282240.

The previous prime is 868943. The next prime is 868951. The reversal of 868944 is 449868.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1854 + ... + 2274.

2868944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151216).

868944 is an abundant number, since it is smaller than the sum of its proper divisors (1433488).

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

868944 is a wasteful number, since it uses less digits than its factorization.

868944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 469 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 868944 is about 932.1716580115. The cubic root of 868944 is about 95.4253869298.

The spelling of 868944 in words is "eight hundred sixty-eight thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 43 48 86 129 172 258 344 421 516 688 842 1032 1263 1684 2064 2526 3368 5052 6736 10104 18103 20208 36206 54309 72412 108618 144824 217236 289648 434472 868944