Base | Representation |
---|---|
bin | 1100110011101001… |
… | …01100101111010001 |
3 | 122202011211112212102 |
4 | 12121310230233101 |
5 | 103040134233311 |
6 | 3054134010145 |
7 | 332246311112 |
oct | 63164545721 |
9 | 18664745772 |
10 | 6875696081 |
11 | 2a09173261 |
12 | 13ba7a6955 |
13 | 857633027 |
14 | 493240209 |
15 | 2a396343b |
hex | 199d2cbd1 |
6875696081 has 4 divisors (see below), whose sum is σ = 6897386292. Its totient is φ = 6854005872.
The previous prime is 6875696077. The next prime is 6875696143. The reversal of 6875696081 is 1806965786.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1806965786 = 2 ⋅903482893.
It can be written as a sum of positive squares in 2 ways, for example, as 173817856 + 6701878225 = 13184^2 + 81865^2 .
It is a cyclic number.
It is not a de Polignac number, because 6875696081 - 22 = 6875696077 is a prime.
It is a super-2 number, since 2×68756960812 = 94550393196557517122, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (6875696011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10844630 + ... + 10845263.
It is an arithmetic number, because the mean of its divisors is an integer number (1724346573).
Almost surely, 26875696081 is an apocalyptic number.
It is an amenable number.
6875696081 is a deficient number, since it is larger than the sum of its proper divisors (21690211).
6875696081 is a wasteful number, since it uses less digits than its factorization.
6875696081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21690210.
The product of its (nonzero) digits is 4354560, while the sum is 56.
The square root of 6875696081 is about 82919.8171790073. The cubic root of 6875696081 is about 1901.5404018623.
The spelling of 6875696081 in words is "six billion, eight hundred seventy-five million, six hundred ninety-six thousand, eighty-one".
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