Base | Representation |
---|---|
bin | 100101010101100… |
… | …111010101011010 |
3 | 1121122201120222200 |
4 | 211111213111122 |
5 | 2240331020010 |
6 | 142054231030 |
7 | 21344336334 |
oct | 4525472532 |
9 | 1548646880 |
10 | 626423130 |
11 | 2a1665a73 |
12 | 155955476 |
13 | 9ca1a798 |
14 | 5d2a4454 |
15 | 39edbcc0 |
hex | 2556755a |
626423130 has 48 divisors (see below), whose sum is σ = 1636468704. Its totient is φ = 166249440.
The previous prime is 626423129. The next prime is 626423137. The reversal of 626423130 is 31324626.
626423130 is a `hidden beast` number, since 6 + 2 + 642 + 3 + 13 + 0 = 666.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 626423094 and 626423103.
It is not an unprimeable number, because it can be changed into a prime (626423137) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2497 + ... + 35483.
It is an arithmetic number, because the mean of its divisors is an integer number (34093098).
Almost surely, 2626423130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 626423130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818234352).
626423130 is an abundant number, since it is smaller than the sum of its proper divisors (1010045574).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
626423130 is a wasteful number, since it uses less digits than its factorization.
626423130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33211 (or 33208 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
The square root of 626423130 is about 25028.4464160283. The cubic root of 626423130 is about 855.6364195664.
Adding to 626423130 its reverse (31324626), we get a palindrome (657747756).
The spelling of 626423130 in words is "six hundred twenty-six million, four hundred twenty-three thousand, one hundred thirty".
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