Base | Representation |
---|---|
bin | 10010101000110100… |
… | …011111000111101001 |
3 | 1220122200111010002100 |
4 | 102220310133013221 |
5 | 311441110403200 |
6 | 13105442524013 |
7 | 1305630616440 |
oct | 225064370751 |
9 | 56580433070 |
10 | 20012200425 |
11 | 853a402418 |
12 | 3a66066609 |
13 | 1b6c089c19 |
14 | d7bb7dd57 |
15 | 7c1d7ad00 |
hex | 4a8d1f1e9 |
20012200425 has 36 divisors (see below), whose sum is σ = 40964659840. Its totient is φ = 9148433760.
The previous prime is 20012200349. The next prime is 20012200427. The reversal of 20012200425 is 52400221002.
20012200425 is a `hidden beast` number, since 20 + 0 + 1 + 220 + 0 + 425 = 666.
It is not a de Polignac number, because 20012200425 - 29 = 20012199913 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20012200398 and 20012200407.
It is not an unprimeable number, because it can be changed into a prime (20012200427) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6351505 + ... + 6354654.
Almost surely, 220012200425 is an apocalyptic number.
20012200425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20012200425 is an abundant number, since it is smaller than the sum of its proper divisors (20952459415).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20012200425 is a wasteful number, since it uses less digits than its factorization.
20012200425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12706182 (or 12706174 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
Adding to 20012200425 its reverse (52400221002), we get a palindrome (72412421427).
The spelling of 20012200425 in words is "twenty billion, twelve million, two hundred thousand, four hundred twenty-five".
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