Base | Representation |
---|---|
bin | 111101000111001… |
… | …010000000011100 |
3 | 2122110020221012221 |
4 | 331013022000130 |
5 | 4044433124142 |
6 | 245423235124 |
7 | 34256534341 |
oct | 7507120034 |
9 | 2573227187 |
10 | 1025286172 |
11 | 486824749 |
12 | 247448aa4 |
13 | 134551711 |
14 | 9a2507c8 |
15 | 60028767 |
hex | 3d1ca01c |
1025286172 has 12 divisors (see below), whose sum is σ = 1807948296. Its totient is φ = 508729520.
The previous prime is 1025286149. The next prime is 1025286179. The reversal of 1025286172 is 2716825201.
It is a happy number.
It is a super-3 number, since 3×10252861723 (a number of 28 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1025286179) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977803 + ... + 978850.
It is an arithmetic number, because the mean of its divisors is an integer number (150662358).
Almost surely, 21025286172 is an apocalyptic number.
It is an amenable number.
1025286172 is a deficient number, since it is larger than the sum of its proper divisors (782662124).
1025286172 is a wasteful number, since it uses less digits than its factorization.
1025286172 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1956788 (or 1956786 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 34.
The square root of 1025286172 is about 32020.0901310412. The cubic root of 1025286172 is about 1008.3586621023.
The spelling of 1025286172 in words is "one billion, twenty-five million, two hundred eighty-six thousand, one hundred seventy-two".
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