Base | Representation |
---|---|
bin | 11001000110101… |
… | …100011000000001 |
3 | 1002100112102020101 |
4 | 121012230120001 |
5 | 1330310410100 |
6 | 105443242401 |
7 | 13303004452 |
oct | 3106543001 |
9 | 1070472211 |
10 | 421185025 |
11 | 1a68255a8 |
12 | b9079401 |
13 | 6934b211 |
14 | 3dd1b129 |
15 | 26e9a86a |
hex | 191ac601 |
421185025 has 12 divisors (see below), whose sum is σ = 527343232. Its totient is φ = 333674640.
The previous prime is 421184971. The next prime is 421185029. The reversal of 421185025 is 520581124.
It is not a de Polignac number, because 421185025 - 217 = 421053953 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 421184984 and 421185002.
It is not an unprimeable number, because it can be changed into a prime (421185029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79209 + ... + 84358.
Almost surely, 2421185025 is an apocalyptic number.
It is an amenable number.
421185025 is a deficient number, since it is larger than the sum of its proper divisors (106158207).
421185025 is a wasteful number, since it uses less digits than its factorization.
421185025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163680 (or 163675 counting only the distinct ones).
The product of its (nonzero) digits is 3200, while the sum is 28.
The square root of 421185025 is about 20522.7928167684. The cubic root of 421185025 is about 749.5909028192.
The spelling of 421185025 in words is "four hundred twenty-one million, one hundred eighty-five thousand, twenty-five".
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