Base | Representation |
---|---|
bin | 11101010101100011… |
… | …011000101001010011 |
3 | 10000022022000102000021 |
4 | 131111203120221103 |
5 | 1004003012013134 |
6 | 22245420404311 |
7 | 2163413343421 |
oct | 352543305123 |
9 | 100268012007 |
10 | 31500110419 |
11 | 123a4a9a208 |
12 | 61313a6697 |
13 | 2c800c56bb |
14 | 174b77a111 |
15 | c456960b4 |
hex | 7558d8a53 |
31500110419 has 2 divisors, whose sum is σ = 31500110420. Its totient is φ = 31500110418.
The previous prime is 31500110371. The next prime is 31500110489. The reversal of 31500110419 is 91401100513.
It is a weak prime.
It is an emirp because it is prime and its reverse (91401100513) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31500110419 is a prime.
It is a super-2 number, since 2×315001104192 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 31500110393 and 31500110402.
It is not a weakly prime, because it can be changed into another prime (31500110489) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15750055209 + 15750055210.
It is an arithmetic number, because the mean of its divisors is an integer number (15750055210).
Almost surely, 231500110419 is an apocalyptic number.
31500110419 is a deficient number, since it is larger than the sum of its proper divisors (1).
31500110419 is an equidigital number, since it uses as much as digits as its factorization.
31500110419 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 540, while the sum is 25.
The spelling of 31500110419 in words is "thirty-one billion, five hundred million, one hundred ten thousand, four hundred nineteen".
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