Base | Representation |
---|---|
bin | 1101001100001101… |
… | …00001000100110101 |
3 | 200021112110022012012 |
4 | 12212012201010311 |
5 | 104000403142433 |
6 | 3130413134005 |
7 | 340330254500 |
oct | 64606410465 |
9 | 20245408165 |
10 | 7081693493 |
11 | 3004482156 |
12 | 145778a305 |
13 | 88b20a0a4 |
14 | 4b2744137 |
15 | 2b6aa4848 |
hex | 1a61a1135 |
7081693493 has 12 divisors (see below), whose sum is σ = 8239262220. Its totient is φ = 6069010752.
The previous prime is 7081693481. The next prime is 7081693511. The reversal of 7081693493 is 3943961807.
7081693493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 2077262929 + 5004430564 = 45577^2 + 70742^2 .
It is not a de Polignac number, because 7081693493 - 210 = 7081692469 is a prime.
It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7081693393) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542993 + ... + 555881.
It is an arithmetic number, because the mean of its divisors is an integer number (686605185).
Almost surely, 27081693493 is an apocalyptic number.
It is an amenable number.
7081693493 is a deficient number, since it is larger than the sum of its proper divisors (1157568727).
7081693493 is a wasteful number, since it uses less digits than its factorization.
7081693493 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24116 (or 24109 counting only the distinct ones).
The product of its (nonzero) digits is 979776, while the sum is 50.
The square root of 7081693493 is about 84152.7984858495. The cubic root of 7081693493 is about 1920.3440403631.
The spelling of 7081693493 in words is "seven billion, eighty-one million, six hundred ninety-three thousand, four hundred ninety-three".
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