Base | Representation |
---|---|
bin | 101000100111101… |
… | …010101011110111 |
3 | 1202111100010112210 |
4 | 220213222223313 |
5 | 2343430041340 |
6 | 151342344503 |
7 | 22613354562 |
oct | 5047525367 |
9 | 1674303483 |
10 | 681487095 |
11 | 31a755383 |
12 | 17028b133 |
13 | ab259b03 |
14 | 667194d9 |
15 | 3ec67180 |
hex | 289eaaf7 |
681487095 has 16 divisors (see below), whose sum is σ = 1127979360. Its totient is φ = 350926464.
The previous prime is 681487073. The next prime is 681487099. The reversal of 681487095 is 590784186.
It is not a de Polignac number, because 681487095 - 25 = 681487063 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (681487099) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782884 + ... + 783753.
It is an arithmetic number, because the mean of its divisors is an integer number (70498710).
Almost surely, 2681487095 is an apocalyptic number.
681487095 is a deficient number, since it is larger than the sum of its proper divisors (446492265).
681487095 is a wasteful number, since it uses less digits than its factorization.
681487095 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1566674.
The product of its (nonzero) digits is 483840, while the sum is 48.
The square root of 681487095 is about 26105.3077936270. The cubic root of 681487095 is about 880.0064974555.
The spelling of 681487095 in words is "six hundred eighty-one million, four hundred eighty-seven thousand, ninety-five".
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