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685344 = 25311259
BaseRepresentation
bin10100111010100100000
31021211010010
42213110200
5133412334
622404520
75553042
oct2472440
91254103
10685344
11428a00
12290740
131acc3a
1413ba92
15d80e9
hexa7520

685344 has 72 divisors (see below), whose sum is σ = 2010960. Its totient is φ = 204160.

The previous prime is 685339. The next prime is 685361. The reversal of 685344 is 443586.

It is a nialpdrome in base 16.

It is an unprimeable number.

685344 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 11 ways as a sum of consecutive naturals, for example, 11587 + ... + 11645.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2685344 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 685344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005480).

685344 is an abundant number, since it is smaller than the sum of its proper divisors (1325616).

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

685344 is a wasteful number, since it uses less digits than its factorization.

685344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 75 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 685344 is about 827.8550597780. The cubic root of 685344 is about 88.1663520027.

The spelling of 685344 in words is "six hundred eighty-five thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 59 66 88 96 118 121 132 176 177 236 242 264 352 354 363 472 484 528 649 708 726 944 968 1056 1298 1416 1452 1888 1936 1947 2596 2832 2904 3872 3894 5192 5664 5808 7139 7788 10384 11616 14278 15576 20768 21417 28556 31152 42834 57112 62304 85668 114224 171336 228448 342672 685344