Base | Representation |
---|---|
bin | 11100111001100101… |
… | …111111001010010011 |
3 | 2222002121100200012221 |
4 | 130321211333022103 |
5 | 1002022420433134 |
6 | 22131102401511 |
7 | 2145656256304 |
oct | 347145771223 |
9 | 88077320187 |
10 | 31031030419 |
11 | 12184231494 |
12 | 6020290297 |
13 | 2c06b7827c |
14 | 17053527ab |
15 | c193d95b4 |
hex | 73997f293 |
31031030419 has 2 divisors, whose sum is σ = 31031030420. Its totient is φ = 31031030418.
The previous prime is 31031030357. The next prime is 31031030447. The reversal of 31031030419 is 91403013013.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 31031030419 - 29 = 31031029907 is a prime.
It is a super-2 number, since 2×310310304192 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 31031030393 and 31031030402.
It is not a weakly prime, because it can be changed into another prime (31031030449) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515515209 + 15515515210.
It is an arithmetic number, because the mean of its divisors is an integer number (15515515210).
Almost surely, 231031030419 is an apocalyptic number.
31031030419 is a deficient number, since it is larger than the sum of its proper divisors (1).
31031030419 is an equidigital number, since it uses as much as digits as its factorization.
31031030419 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 972, while the sum is 25.
The spelling of 31031030419 in words is "thirty-one billion, thirty-one million, thirty thousand, four hundred nineteen".
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