Base | Representation |
---|---|
bin | 111001010101010101… |
… | …0010101101110001110 |
3 | 102202210121100101122200 |
4 | 1302222222111232032 |
5 | 4004123302410110 |
6 | 132321150222330 |
7 | 11616041240046 |
oct | 1625252255616 |
9 | 382717311580 |
10 | 123122310030 |
11 | 48241374935 |
12 | 1ba414b49a6 |
13 | b7c20240b5 |
14 | 5d5dcaa726 |
15 | 33091596c0 |
hex | 1caaa95b8e |
123122310030 has 48 divisors (see below), whose sum is σ = 320703359184. Its totient is φ = 32772579840.
The previous prime is 123122310029. The next prime is 123122310043. The reversal of 123122310030 is 30013221321.
123122310030 is a `hidden beast` number, since 12 + 312 + 2 + 310 + 0 + 30 = 666.
123122310030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 123122309985 and 123122310012.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1201251 + ... + 1299710.
It is an arithmetic number, because the mean of its divisors is an integer number (6681319983).
Almost surely, 2123122310030 is an apocalyptic number.
123122310030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123122310030 is an abundant number, since it is smaller than the sum of its proper divisors (197581049154).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123122310030 is a wasteful number, since it uses less digits than its factorization.
123122310030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2501521 (or 2501518 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 123122310030 its reverse (30013221321), we get a palindrome (153135531351).
The spelling of 123122310030 in words is "one hundred twenty-three billion, one hundred twenty-two million, three hundred ten thousand, thirty".
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