Base | Representation |
---|---|
bin | 110001100010101101… |
… | …0100010110111101111 |
3 | 101011121120222021100112 |
4 | 1203011122202313233 |
5 | 3220342132111411 |
6 | 120513034250235 |
7 | 10454322001100 |
oct | 1430532426757 |
9 | 334546867315 |
10 | 106391285231 |
11 | 4113611a310 |
12 | 1875228697b |
13 | a05698821a |
14 | 5213c063a7 |
15 | 2b7a3b3b8b |
hex | 18c56a2def |
106391285231 has 12 divisors (see below), whose sum is σ = 135012318120. Its totient is φ = 82902299760.
The previous prime is 106391285227. The next prime is 106391285293. The reversal of 106391285231 is 132582193601.
It is not a de Polignac number, because 106391285231 - 22 = 106391285227 is a prime.
It is a super-2 number, since 2×1063912852312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (106391285201) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98692676 + ... + 98693753.
It is an arithmetic number, because the mean of its divisors is an integer number (11251026510).
Almost surely, 2106391285231 is an apocalyptic number.
106391285231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
106391285231 is a deficient number, since it is larger than the sum of its proper divisors (28621032889).
106391285231 is a wasteful number, since it uses less digits than its factorization.
106391285231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 197386454 (or 197386447 counting only the distinct ones).
The product of its (nonzero) digits is 77760, while the sum is 41.
The spelling of 106391285231 in words is "one hundred six billion, three hundred ninety-one million, two hundred eighty-five thousand, two hundred thirty-one".
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