Base | Representation |
---|---|
bin | 1100111110101111… |
… | …11010111000111001 |
3 | 122222200001111020020 |
4 | 12133113322320321 |
5 | 103233004041121 |
6 | 3111301521053 |
7 | 334456644240 |
oct | 63727727071 |
9 | 18880044206 |
10 | 6968815161 |
11 | 2a56794a80 |
12 | 1425a13189 |
13 | 870a07889 |
14 | 4a175d957 |
15 | 2abc091c6 |
hex | 19f5fae39 |
6968815161 has 32 divisors (see below), whose sum is σ = 11831021568. Its totient is φ = 3543133440.
The previous prime is 6968815153. The next prime is 6968815171. The reversal of 6968815161 is 1615188696.
It is not a de Polignac number, because 6968815161 - 23 = 6968815153 is a prime.
It is a super-3 number, since 3×69688151613 (a number of 31 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (6968815171) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310080 + ... + 331793.
It is an arithmetic number, because the mean of its divisors is an integer number (369719424).
Almost surely, 26968815161 is an apocalyptic number.
It is an amenable number.
6968815161 is a deficient number, since it is larger than the sum of its proper divisors (4862206407).
6968815161 is a wasteful number, since it uses less digits than its factorization.
6968815161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 641941.
The product of its digits is 622080, while the sum is 51.
The square root of 6968815161 is about 83479.4295680080. The cubic root of 6968815161 is about 1910.0862657601.
The spelling of 6968815161 in words is "six billion, nine hundred sixty-eight million, eight hundred fifteen thousand, one hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •