Base | Representation |
---|---|
bin | 11101000101100101… |
… | …000000110000000011 |
3 | 2222121121201010201112 |
4 | 131011211000300003 |
5 | 1002430404221004 |
6 | 22203044153535 |
7 | 2153650324103 |
oct | 350545006003 |
9 | 88547633645 |
10 | 31232101379 |
11 | 12277786036 |
12 | 60776988ab |
13 | 2c39718b7b |
14 | 1723d33203 |
15 | c2bda5e6e |
hex | 745940c03 |
31232101379 has 2 divisors, whose sum is σ = 31232101380. Its totient is φ = 31232101378.
The previous prime is 31232101349. The next prime is 31232101441. The reversal of 31232101379 is 97310123213.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31232101379 is a prime.
It is not a weakly prime, because it can be changed into another prime (31232101349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616050689 + 15616050690.
It is an arithmetic number, because the mean of its divisors is an integer number (15616050690).
Almost surely, 231232101379 is an apocalyptic number.
31232101379 is a deficient number, since it is larger than the sum of its proper divisors (1).
31232101379 is an equidigital number, since it uses as much as digits as its factorization.
31232101379 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6804, while the sum is 32.
The spelling of 31232101379 in words is "thirty-one billion, two hundred thirty-two million, one hundred one thousand, three hundred seventy-nine".
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