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681260 = 225231481
BaseRepresentation
bin10100110010100101100
31021121111212
42212110230
5133300020
622333552
75535116
oct2462454
91247455
10681260
11425928
1228a2b8
131ab118
1413a3b6
15d6cc5
hexa652c

681260 has 24 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 260480.

The previous prime is 681259. The next prime is 681271. The reversal of 681260 is 62186.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2681260 is an apocalyptic number.

It is an amenable number.

681260 is an abundant number, since it is smaller than the sum of its proper divisors (812596).

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

681260 is a wasteful number, since it uses less digits than its factorization.

681260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 681260 is about 825.3847587641. The cubic root of 681260 is about 87.9908737092.

The spelling of 681260 in words is "six hundred eighty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1481 2962 5924 7405 14810 29620 34063 68126 136252 170315 340630 681260