Base | Representation |
---|---|
bin | 111101000110111… |
… | …100101001100100 |
3 | 2122110011011011120 |
4 | 331012330221210 |
5 | 4044424401320 |
6 | 245422133540 |
7 | 34256216001 |
oct | 7506745144 |
9 | 2573134146 |
10 | 1025231460 |
11 | 486797630 |
12 | 2474212b0 |
13 | 134532846 |
14 | 9a2388a8 |
15 | 60017440 |
hex | 3d1bca64 |
1025231460 has 48 divisors (see below), whose sum is σ = 3131618112. Its totient is φ = 248540800.
The previous prime is 1025231443. The next prime is 1025231479. The reversal of 1025231460 is 641325201.
It is a self number, because there is not a number n which added to its sum of digits gives 1025231460.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 776031 + ... + 777350.
It is an arithmetic number, because the mean of its divisors is an integer number (65242044).
Almost surely, 21025231460 is an apocalyptic number.
1025231460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1025231460 is an abundant number, since it is smaller than the sum of its proper divisors (2106386652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1025231460 is a wasteful number, since it uses less digits than its factorization.
1025231460 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1553404 (or 1553402 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 1025231460 is about 32019.2357810114. The cubic root of 1025231460 is about 1008.3407255489.
Adding to 1025231460 its reverse (641325201), we get a palindrome (1666556661).
The spelling of 1025231460 in words is "one billion, twenty-five million, two hundred thirty-one thousand, four hundred sixty".
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