Base | Representation |
---|---|
bin | 10010101111011100… |
… | …010011110001110110 |
3 | 1220221102112201012122 |
4 | 102233130103301312 |
5 | 312203031144110 |
6 | 13124452115542 |
7 | 1311450152645 |
oct | 225734236166 |
9 | 56842481178 |
10 | 20123303030 |
11 | 8597097456 |
12 | 3a97305bb2 |
13 | 1b890ba0cc |
14 | d8c82135c |
15 | 7cb9c5255 |
hex | 4af713c76 |
20123303030 has 32 divisors (see below), whose sum is σ = 36423449280. Its totient is φ = 8004648960.
The previous prime is 20123302999. The next prime is 20123303041. The reversal of 20123303030 is 3030332102.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1615466 + ... + 1627874.
It is an arithmetic number, because the mean of its divisors is an integer number (1138232790).
Almost surely, 220123303030 is an apocalyptic number.
20123303030 is a deficient number, since it is larger than the sum of its proper divisors (16300146250).
20123303030 is a wasteful number, since it uses less digits than its factorization.
20123303030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13304.
The product of its (nonzero) digits is 324, while the sum is 17.
Adding to 20123303030 its reverse (3030332102), we get a palindrome (23153635132).
The spelling of 20123303030 in words is "twenty billion, one hundred twenty-three million, three hundred three thousand, thirty".
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