Base | Representation |
---|---|
bin | 11100000100100000… |
… | …010010000010011111 |
3 | 2212210112101000222221 |
4 | 130010200102002133 |
5 | 443211411424211 |
6 | 21502444050211 |
7 | 2114622453313 |
oct | 340440220237 |
9 | 85715330887 |
10 | 30140342431 |
11 | 1186748a411 |
12 | 5a11b33967 |
13 | 2ac4492264 |
14 | 165cd3bb43 |
15 | bb60ebc71 |
hex | 70481209f |
30140342431 has 2 divisors, whose sum is σ = 30140342432. Its totient is φ = 30140342430.
The previous prime is 30140342411. The next prime is 30140342473. The reversal of 30140342431 is 13424304103.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30140342431 - 29 = 30140341919 is a prime.
It is a super-2 number, since 2×301403424312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30140342396 and 30140342405.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30140342411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15070171215 + 15070171216.
It is an arithmetic number, because the mean of its divisors is an integer number (15070171216).
Almost surely, 230140342431 is an apocalyptic number.
30140342431 is a deficient number, since it is larger than the sum of its proper divisors (1).
30140342431 is an equidigital number, since it uses as much as digits as its factorization.
30140342431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3456, while the sum is 25.
Adding to 30140342431 its reverse (13424304103), we get a palindrome (43564646534).
The spelling of 30140342431 in words is "thirty billion, one hundred forty million, three hundred forty-two thousand, four hundred thirty-one".
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