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868472 = 231171139
BaseRepresentation
bin11010100000001111000
31122010022122
43110001320
5210242342
630340412
710244663
oct3240170
91563278
10868472
11543550
1235a708
132453b7
141886da
151224d2
hexd4078

868472 has 32 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 386400.

The previous prime is 868459. The next prime is 868487. The reversal of 868472 is 274868.

It is a super-2 number, since 2×8684722 = 1508487229568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

868472 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6179 + ... + 6317.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2868472 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 868472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907200).

868472 is an abundant number, since it is smaller than the sum of its proper divisors (945928).

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

868472 is a wasteful number, since it uses less digits than its factorization.

868472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 223 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 868472 is about 931.9184513679. The cubic root of 868472 is about 95.4081058237.

It can be divided in two parts, 86 and 8472, that added together give a palindrome (8558).

The spelling of 868472 in words is "eight hundred sixty-eight thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 71 88 139 142 278 284 556 568 781 1112 1529 1562 3058 3124 6116 6248 9869 12232 19738 39476 78952 108559 217118 434236 868472