Base | Representation |
---|---|
bin | 11101100110110101… |
… | …100001110010110001 |
3 | 10001001111122100100000 |
4 | 131212311201302301 |
5 | 1010101230013103 |
6 | 22334255420213 |
7 | 2203534133340 |
oct | 354665416261 |
9 | 101044570300 |
10 | 31790079153 |
11 | 12533741a98 |
12 | 61b2524669 |
13 | 2cc81c0631 |
14 | 177809bb57 |
15 | c60d72aa3 |
hex | 766d61cb1 |
31790079153 has 48 divisors (see below), whose sum is σ = 54448249856. Its totient is φ = 18157173840.
The previous prime is 31790079151. The next prime is 31790079187. The reversal of 31790079153 is 35197009713.
It is not a de Polignac number, because 31790079153 - 21 = 31790079151 is a prime.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 31790079099 and 31790079108.
It is not an unprimeable number, because it can be changed into a prime (31790079151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5969550 + ... + 5974872.
Almost surely, 231790079153 is an apocalyptic number.
It is an amenable number.
31790079153 is a deficient number, since it is larger than the sum of its proper divisors (22658170703).
31790079153 is an equidigital number, since it uses as much as digits as its factorization.
31790079153 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8856 (or 8844 counting only the distinct ones).
The product of its (nonzero) digits is 178605, while the sum is 45.
The spelling of 31790079153 in words is "thirty-one billion, seven hundred ninety million, seventy-nine thousand, one hundred fifty-three".
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