Base | Representation |
---|---|
bin | 11101001110000111… |
… | …011101110101100101 |
3 | 2222222121020222110021 |
4 | 131032013131311211 |
5 | 1003224042214031 |
6 | 22225202355141 |
7 | 2160340040641 |
oct | 351607356545 |
9 | 88877228407 |
10 | 31375351141 |
11 | 12340627772 |
12 | 60b765bab1 |
13 | 2c602c3444 |
14 | 1738d81c21 |
15 | c39750511 |
hex | 74e1ddd65 |
31375351141 has 16 divisors (see below), whose sum is σ = 32191141248. Its totient is φ = 30570408000.
The previous prime is 31375351129. The next prime is 31375351151. The reversal of 31375351141 is 14115357313.
It is a cyclic number.
It is not a de Polignac number, because 31375351141 - 213 = 31375342949 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31375351097 and 31375351106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31375351151) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9830856 + ... + 9834046.
It is an arithmetic number, because the mean of its divisors is an integer number (2011946328).
Almost surely, 231375351141 is an apocalyptic number.
It is an amenable number.
31375351141 is a deficient number, since it is larger than the sum of its proper divisors (815790107).
31375351141 is a wasteful number, since it uses less digits than its factorization.
31375351141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4812.
The product of its digits is 18900, while the sum is 34.
The spelling of 31375351141 in words is "thirty-one billion, three hundred seventy-five million, three hundred fifty-one thousand, one hundred forty-one".
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