Base | Representation |
---|---|
bin | 11101101100110111… |
… | …101101010101010001 |
3 | 10001022120010121102211 |
4 | 131230313231111101 |
5 | 1010303134022001 |
6 | 22352313312121 |
7 | 2206203460561 |
oct | 355467552521 |
9 | 101276117384 |
10 | 31891314001 |
11 | 125858a7258 |
12 | 6220405641 |
13 | 3013177201 |
14 | 17876d0da1 |
15 | c69bbd351 |
hex | 76cded551 |
31891314001 has 8 divisors (see below), whose sum is σ = 32627947520. Its totient is φ = 31163004288.
The previous prime is 31891313983. The next prime is 31891314041. The reversal of 31891314001 is 10041319813.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31891314001 - 25 = 31891313969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31891314041) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073201 + ... + 2088526.
It is an arithmetic number, because the mean of its divisors is an integer number (4078493440).
Almost surely, 231891314001 is an apocalyptic number.
It is an amenable number.
31891314001 is a deficient number, since it is larger than the sum of its proper divisors (736633519).
31891314001 is an equidigital number, since it uses as much as digits as its factorization.
31891314001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4161903.
The product of its (nonzero) digits is 2592, while the sum is 31.
The spelling of 31891314001 in words is "thirty-one billion, eight hundred ninety-one million, three hundred fourteen thousand, one".
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