Base | Representation |
---|---|
bin | 111101001000000… |
… | …001111011100000 |
3 | 2122110200120102122 |
4 | 331020001323200 |
5 | 4100012441412 |
6 | 245432203412 |
7 | 34261510220 |
oct | 7510017340 |
9 | 2573616378 |
10 | 1025515232 |
11 | 486970855 |
12 | 247539568 |
13 | 134601a61 |
14 | 9a2b0080 |
15 | 60071572 |
hex | 3d201ee0 |
1025515232 has 48 divisors (see below), whose sum is σ = 2350972512. Its totient is φ = 431208960.
The previous prime is 1025515207. The next prime is 1025515243. The reversal of 1025515232 is 2325155201.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 31319 + ... + 55062.
It is an arithmetic number, because the mean of its divisors is an integer number (48978594).
Almost surely, 21025515232 is an apocalyptic number.
It is an amenable number.
1025515232 is an abundant number, since it is smaller than the sum of its proper divisors (1325457280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1025515232 is an equidigital number, since it uses as much as digits as its factorization.
1025515232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 86451 (or 86443 counting only the distinct ones).
The product of its (nonzero) digits is 3000, while the sum is 26.
The square root of 1025515232 is about 32023.6667482036. Note that the first 3 decimals coincide. The cubic root of 1025515232 is about 1008.4337492480.
The spelling of 1025515232 in words is "one billion, twenty-five million, five hundred fifteen thousand, two hundred thirty-two".
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