Base | Representation |
---|---|
bin | 10110100100111101… |
… | …11011100001100011 |
3 | 1011021202021201011120 |
4 | 23102132323201203 |
5 | 144311020224313 |
6 | 5322440343323 |
7 | 606242664564 |
oct | 132236734143 |
9 | 34252251146 |
10 | 12121258083 |
11 | 5160152670 |
12 | 2423474b43 |
13 | 11b230c27c |
14 | 82db8416b |
15 | 4ae223d23 |
hex | 2d27bb863 |
12121258083 has 32 divisors (see below), whose sum is σ = 18417549312. Its totient is φ = 7019152800.
The previous prime is 12121258027. The next prime is 12121258109. The reversal of 12121258083 is 38085212121.
It is a de Polignac number, because none of the positive numbers 2k-12121258083 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is not an unprimeable number, because it can be changed into a prime (12121254083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728766 + ... + 745212.
It is an arithmetic number, because the mean of its divisors is an integer number (575548416).
Almost surely, 212121258083 is an apocalyptic number.
12121258083 is a deficient number, since it is larger than the sum of its proper divisors (6296291229).
12121258083 is a wasteful number, since it uses less digits than its factorization.
12121258083 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17455.
The product of its (nonzero) digits is 7680, while the sum is 33.
The spelling of 12121258083 in words is "twelve billion, one hundred twenty-one million, two hundred fifty-eight thousand, eighty-three".
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