Base | Representation |
---|---|
bin | 101000100111101… |
… | …010100111001011 |
3 | 1202111100010010200 |
4 | 220213222213023 |
5 | 2343430034140 |
6 | 151342343243 |
7 | 22613353653 |
oct | 5047524713 |
9 | 1674303120 |
10 | 681486795 |
11 | 31a755130 |
12 | 17028ab23 |
13 | ab259932 |
14 | 66719363 |
15 | 3ec67030 |
hex | 289ea9cb |
681486795 has 96 divisors (see below), whose sum is σ = 1347840000. Its totient is φ = 315532800.
The previous prime is 681486781. The next prime is 681486797. The reversal of 681486795 is 597684186.
It is not a de Polignac number, because 681486795 - 24 = 681486779 is a prime.
It is not an unprimeable number, because it can be changed into a prime (681486797) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1365456 + ... + 1365954.
It is an arithmetic number, because the mean of its divisors is an integer number (14040000).
Almost surely, 2681486795 is an apocalyptic number.
681486795 is a deficient number, since it is larger than the sum of its proper divisors (666353205).
681486795 is a wasteful number, since it uses less digits than its factorization.
681486795 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 641 (or 638 counting only the distinct ones).
The product of its digits is 2903040, while the sum is 54.
The square root of 681486795 is about 26105.3020476684. The cubic root of 681486795 is about 880.0063683251.
The spelling of 681486795 in words is "six hundred eighty-one million, four hundred eighty-six thousand, seven hundred ninety-five".
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