| Base | Representation |
|---|---|
| bin | 10010110111111101… |
| … | …100011000100010000 |
| 3 | 1221022101111100211000 |
| 4 | 102313331203010100 |
| 5 | 313001123443003 |
| 6 | 13150555422000 |
| 7 | 1315134101460 |
| oct | 226775430420 |
| 9 | 57271440730 |
| 10 | 20266234128 |
| 11 | 865a840728 |
| 12 | 3b17154900 |
| 13 | 1bac8b261a |
| 14 | da37c9ba0 |
| 15 | 7d930a1a3 |
| hex | 4b7f63110 |
20266234128 has 320 divisors, whose sum is σ = 69938380800. Its totient is φ = 5496491520.
The previous prime is 20266234127. The next prime is 20266234129. The reversal of 20266234128 is 82143266202.
20266234128 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 623 + 4 + 1 + 28 = 666.
It is an interprime number because it is at equal distance from previous prime (20266234127) and next prime (20266234129).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 20266234092 and 20266234101.
It is not an unprimeable number, because it can be changed into a prime (20266234127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4966393 + ... + 4970471.
It is an arithmetic number, because the mean of its divisors is an integer number (218557440).
Almost surely, 220266234128 is an apocalyptic number.
20266234128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20266234128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34969190400).
20266234128 is an abundant number, since it is smaller than the sum of its proper divisors (49672146672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20266234128 is a wasteful number, since it uses less digits than its factorization.
20266234128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4187 (or 4175 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 36.
The spelling of 20266234128 in words is "twenty billion, two hundred sixty-six million, two hundred thirty-four thousand, one hundred twenty-eight".
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