Base | Representation |
---|---|
bin | 111001001011010100… |
… | …010010101010111001 |
3 | 12212110121001021222021 |
4 | 321023110102222321 |
5 | 2001213121341242 |
6 | 44111552154441 |
7 | 4302244121242 |
oct | 711324225271 |
9 | 185417037867 |
10 | 61393152697 |
11 | 2404491a328 |
12 | ba94538a21 |
13 | 5a3527c0b6 |
14 | 2d85901cc9 |
15 | 18e4be3b67 |
hex | e4b512ab9 |
61393152697 has 16 divisors (see below), whose sum is σ = 65863195200. Its totient is φ = 57057566400.
The previous prime is 61393152683. The next prime is 61393152701. The reversal of 61393152697 is 79625139316.
61393152697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 61393152697 - 227 = 61258934969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (61393152617) 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, 62418 + ... + 355924.
It is an arithmetic number, because the mean of its divisors is an integer number (4116449700).
Almost surely, 261393152697 is an apocalyptic number.
It is an amenable number.
61393152697 is a deficient number, since it is larger than the sum of its proper divisors (4470042503).
61393152697 is a wasteful number, since it uses less digits than its factorization.
61393152697 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 293736.
The product of its digits is 1837080, while the sum is 52.
The spelling of 61393152697 in words is "sixty-one billion, three hundred ninety-three million, one hundred fifty-two thousand, six hundred ninety-seven".
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