Base | Representation |
---|---|
bin | 111001011000110111… |
… | …1100110100000011100 |
3 | 102210002212221002000202 |
4 | 1302301233212200130 |
5 | 4004344212130022 |
6 | 132341033043032 |
7 | 11622013215020 |
oct | 1626157464034 |
9 | 383085832022 |
10 | 123241130012 |
11 | 482a2450070 |
12 | 1ba75256478 |
13 | b810826b90 |
14 | 5d7199a380 |
15 | 33147ca592 |
hex | 1cb1be681c |
123241130012 has 192 divisors, whose sum is σ = 307343102976. Its totient is φ = 41615216640.
The previous prime is 123241130011. The next prime is 123241130027. The reversal of 123241130012 is 210031142321.
It is a super-2 number, since 2×1232411300122 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123241130011) 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 63 ways as a sum of consecutive naturals, for example, 31785818 + ... + 31789694.
It is an arithmetic number, because the mean of its divisors is an integer number (1600745328).
Almost surely, 2123241130012 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 123241130012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153671551488).
123241130012 is an abundant number, since it is smaller than the sum of its proper divisors (184101972964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123241130012 is a wasteful number, since it uses less digits than its factorization.
123241130012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4396 (or 4394 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 123241130012 its reverse (210031142321), we get a palindrome (333272272333).
The spelling of 123241130012 in words is "one hundred twenty-three billion, two hundred forty-one million, one hundred thirty thousand, twelve".
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