Base | Representation |
---|---|
bin | 111101000111110… |
… | …010010000100000 |
3 | 2122110120022101011 |
4 | 331013302100200 |
5 | 4100003413130 |
6 | 245430550304 |
7 | 34261122115 |
oct | 7507622040 |
9 | 2573508334 |
10 | 1025451040 |
11 | 4869275a9 |
12 | 247508394 |
13 | 1345ab783 |
14 | 9a29490c |
15 | 6005c52a |
hex | 3d1f2420 |
1025451040 has 48 divisors (see below), whose sum is σ = 2425006080. Its totient is φ = 409777920.
The previous prime is 1025451023. The next prime is 1025451043. The reversal of 1025451040 is 401545201.
It is not an unprimeable number, because it can be changed into a prime (1025451043) 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 7 ways as a sum of consecutive naturals, for example, 202135 + ... + 207145.
It is an arithmetic number, because the mean of its divisors is an integer number (50520960).
Almost surely, 21025451040 is an apocalyptic number.
1025451040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1025451040 is an abundant number, since it is smaller than the sum of its proper divisors (1399555040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1025451040 is a wasteful number, since it uses less digits than its factorization.
1025451040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6305 (or 6297 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 22.
The square root of 1025451040 is about 32022.6644737754. The cubic root of 1025451040 is about 1008.4127078801.
Adding to 1025451040 its reverse (401545201), we get a palindrome (1426996241).
The spelling of 1025451040 in words is "one billion, twenty-five million, four hundred fifty-one thousand, forty".
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