Base | Representation |
---|---|
bin | 111001010101010001… |
… | …0101101011100100101 |
3 | 102202210110120210012110 |
4 | 1302222202231130211 |
5 | 4004122244410203 |
6 | 132321035311233 |
7 | 11616015240156 |
oct | 1625242553445 |
9 | 382713523173 |
10 | 123120310053 |
11 | 48240229264 |
12 | 1ba408ab519 |
13 | b7c17a3990 |
14 | 5d5d90992d |
15 | 3308db1d03 |
hex | 1caa8ad725 |
123120310053 has 8 divisors (see below), whose sum is σ = 176788137568. Its totient is φ = 75766344624.
The previous prime is 123120310051. The next prime is 123120310067. The reversal of 123120310053 is 350013021321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 123120310053 - 21 = 123120310051 is a prime.
It is a super-2 number, since 2×1231203100532 (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 (123120310051) 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 7 ways as a sum of consecutive naturals, for example, 1578465475 + ... + 1578465552.
It is an arithmetic number, because the mean of its divisors is an integer number (22098517196).
Almost surely, 2123120310053 is an apocalyptic number.
123120310053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
123120310053 is a deficient number, since it is larger than the sum of its proper divisors (53667827515).
123120310053 is a wasteful number, since it uses less digits than its factorization.
123120310053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3156931043.
The product of its (nonzero) digits is 540, while the sum is 21.
Adding to 123120310053 its reverse (350013021321), we get a palindrome (473133331374).
The spelling of 123120310053 in words is "one hundred twenty-three billion, one hundred twenty million, three hundred ten thousand, fifty-three".
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