Base | Representation |
---|---|
bin | 11101001100100111… |
… | …110101001110010011 |
3 | 2222220212002021211111 |
4 | 131030213311032103 |
5 | 1003201132443412 |
6 | 22222505154151 |
7 | 2156613664315 |
oct | 351447651623 |
9 | 88825067744 |
10 | 31350281107 |
11 | 12328464232 |
12 | 60ab18b957 |
13 | 2c580563c2 |
14 | 17358d77b5 |
15 | c3744c2a7 |
hex | 74c9f5393 |
31350281107 has 2 divisors, whose sum is σ = 31350281108. Its totient is φ = 31350281106.
The previous prime is 31350281101. The next prime is 31350281129. The reversal of 31350281107 is 70118205313.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 31350281107 - 227 = 31216063379 is a prime.
It is a super-2 number, since 2×313502811072 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (31350281101) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15675140553 + 15675140554.
It is an arithmetic number, because the mean of its divisors is an integer number (15675140554).
Almost surely, 231350281107 is an apocalyptic number.
31350281107 is a deficient number, since it is larger than the sum of its proper divisors (1).
31350281107 is an equidigital number, since it uses as much as digits as its factorization.
31350281107 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5040, while the sum is 31.
The spelling of 31350281107 in words is "thirty-one billion, three hundred fifty million, two hundred eighty-one thousand, one hundred seven".
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