Base | Representation |
---|---|
bin | 11011111110000101… |
… | …000011101101000011 |
3 | 2212112000112020100001 |
4 | 123332011003231003 |
5 | 443001312330111 |
6 | 21444033340431 |
7 | 2112143254015 |
oct | 337605035503 |
9 | 85460466301 |
10 | 30032542531 |
11 | 11811650792 |
12 | 59a1a07717 |
13 | 2aa804a434 |
14 | 164c8ba1b5 |
15 | bab9061c1 |
hex | 6fe143b43 |
30032542531 has 2 divisors, whose sum is σ = 30032542532. Its totient is φ = 30032542530.
The previous prime is 30032542513. The next prime is 30032542541. The reversal of 30032542531 is 13524523003.
Together with previous prime (30032542513) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30032542531 - 215 = 30032509763 is a prime.
It is a super-2 number, since 2×300325425312 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30032542531.
It is not a weakly prime, because it can be changed into another prime (30032542511) 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 as a sum of consecutive naturals, namely, 15016271265 + 15016271266.
It is an arithmetic number, because the mean of its divisors is an integer number (15016271266).
Almost surely, 230032542531 is an apocalyptic number.
30032542531 is a deficient number, since it is larger than the sum of its proper divisors (1).
30032542531 is an equidigital number, since it uses as much as digits as its factorization.
30032542531 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 10800, while the sum is 28.
The spelling of 30032542531 in words is "thirty billion, thirty-two million, five hundred forty-two thousand, five hundred thirty-one".
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