Base | Representation |
---|---|
bin | 11100111001000111… |
… | …000001101000000001 |
3 | 2222002001002022122122 |
4 | 130321013001220001 |
5 | 1002013331222144 |
6 | 22130212414025 |
7 | 2145530263361 |
oct | 347107015001 |
9 | 88061068578 |
10 | 31022914049 |
11 | 1217a698546 |
12 | 6019617315 |
13 | 2c05295b9a |
14 | 170423c9a1 |
15 | c188347ee |
hex | 7391c1a01 |
31022914049 has 4 divisors (see below), whose sum is σ = 32847791364. Its totient is φ = 29198036736.
The previous prime is 31022914033. The next prime is 31022914063. The reversal of 31022914049 is 94041922013.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 8282274049 + 22740640000 = 91007^2 + 150800^2 .
It is a cyclic number.
It is not a de Polignac number, because 31022914049 - 24 = 31022914033 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31022914009) 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, 912438632 + ... + 912438665.
It is an arithmetic number, because the mean of its divisors is an integer number (8211947841).
Almost surely, 231022914049 is an apocalyptic number.
It is an amenable number.
31022914049 is a deficient number, since it is larger than the sum of its proper divisors (1824877315).
31022914049 is a wasteful number, since it uses less digits than its factorization.
31022914049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1824877314.
The product of its (nonzero) digits is 15552, while the sum is 35.
The spelling of 31022914049 in words is "thirty-one billion, twenty-two million, nine hundred fourteen thousand, forty-nine".
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