Base | Representation |
---|---|
bin | 10010101111100000… |
… | …010001111101000010 |
3 | 1220221111111121022220 |
4 | 102233200101331002 |
5 | 312203313003010 |
6 | 13124530311510 |
7 | 1311462050142 |
oct | 225740217502 |
9 | 56844447286 |
10 | 20124344130 |
11 | 8597738670 |
12 | 3a97728596 |
13 | 1b89392c47 |
14 | d8ca12922 |
15 | 7cbb2d970 |
hex | 4af811f42 |
20124344130 has 32 divisors (see below), whose sum is σ = 52689192768. Its totient is φ = 4878628800.
The previous prime is 20124344117. The next prime is 20124344147. The reversal of 20124344130 is 3144342102.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 20124344130.
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, 30491101 + ... + 30491760.
It is an arithmetic number, because the mean of its divisors is an integer number (1646537274).
Almost surely, 220124344130 is an apocalyptic number.
20124344130 is an abundant number, since it is smaller than the sum of its proper divisors (32564848638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20124344130 is a wasteful number, since it uses less digits than its factorization.
20124344130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60982882.
The product of its (nonzero) digits is 2304, while the sum is 24.
Adding to 20124344130 its reverse (3144342102), we get a palindrome (23268686232).
The spelling of 20124344130 in words is "twenty billion, one hundred twenty-four million, three hundred forty-four thousand, one hundred thirty".
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