Base | Representation |
---|---|
bin | 10010000110010010… |
… | …110001001001011111 |
3 | 1212011022111102201112 |
4 | 102012102301021133 |
5 | 304244312423111 |
6 | 12532151132235 |
7 | 1255365142115 |
oct | 220622611137 |
9 | 55138442645 |
10 | 19432936031 |
11 | 8272427513 |
12 | 392407407b |
13 | 1aa9071522 |
14 | d24c73ab5 |
15 | 78b0a6e8b |
hex | 4864b125f |
19432936031 has 2 divisors, whose sum is σ = 19432936032. Its totient is φ = 19432936030.
The previous prime is 19432936001. The next prime is 19432936043. The reversal of 19432936031 is 13063923491.
It is a strong prime.
It is an emirp because it is prime and its reverse (13063923491) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 19432936031 - 214 = 19432919647 is a prime.
It is a super-2 number, since 2×194329360312 (a number of 21 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 19432936031.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19432936001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9716468015 + 9716468016.
It is an arithmetic number, because the mean of its divisors is an integer number (9716468016).
Almost surely, 219432936031 is an apocalyptic number.
19432936031 is a deficient number, since it is larger than the sum of its proper divisors (1).
19432936031 is an equidigital number, since it uses as much as digits as its factorization.
19432936031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 104976, while the sum is 41.
The spelling of 19432936031 in words is "nineteen billion, four hundred thirty-two million, nine hundred thirty-six thousand, thirty-one".
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