Base | Representation |
---|---|
bin | 11101010000111110… |
… | …000000000001100011 |
3 | 10000002221022000122022 |
4 | 131100332000001203 |
5 | 1003323314421004 |
6 | 22234032132055 |
7 | 2161460543003 |
oct | 352076000143 |
9 | 100087260568 |
10 | 31423201379 |
11 | 1236563a319 |
12 | 610b69702b |
13 | 2c6a1a81ab |
14 | 174147a003 |
15 | c3da532be |
hex | 750f80063 |
31423201379 has 2 divisors, whose sum is σ = 31423201380. Its totient is φ = 31423201378.
The previous prime is 31423201363. The next prime is 31423201393. The reversal of 31423201379 is 97310232413.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 31423201379 - 24 = 31423201363 is a prime.
It is not a weakly prime, because it can be changed into another prime (31423201309) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711600689 + 15711600690.
It is an arithmetic number, because the mean of its divisors is an integer number (15711600690).
Almost surely, 231423201379 is an apocalyptic number.
31423201379 is a deficient number, since it is larger than the sum of its proper divisors (1).
31423201379 is an equidigital number, since it uses as much as digits as its factorization.
31423201379 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27216, while the sum is 35.
The spelling of 31423201379 in words is "thirty-one billion, four hundred twenty-three million, two hundred one thousand, three hundred seventy-nine".
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