Base | Representation |
---|---|
bin | 111101000110000… |
… | …100011111100101 |
3 | 2122102201110122111 |
4 | 331012010133211 |
5 | 4044400021240 |
6 | 245413201021 |
7 | 34254240256 |
oct | 7506043745 |
9 | 2572643574 |
10 | 1025001445 |
11 | 48664a836 |
12 | 247330171 |
13 | 134481c40 |
14 | 9a1b8b2d |
15 | 5eebe1ea |
hex | 3d1847e5 |
1025001445 has 32 divisors (see below), whose sum is σ = 1347075072. Its totient is φ = 744187392.
The previous prime is 1025001407. The next prime is 1025001457. The reversal of 1025001445 is 5441005201.
It is not a de Polignac number, because 1025001445 - 211 = 1024999397 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1688332 + ... + 1688938.
It is an arithmetic number, because the mean of its divisors is an integer number (42096096).
Almost surely, 21025001445 is an apocalyptic number.
It is an amenable number.
1025001445 is a deficient number, since it is larger than the sum of its proper divisors (322073627).
1025001445 is a wasteful number, since it uses less digits than its factorization.
1025001445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1021.
The product of its (nonzero) digits is 800, while the sum is 22.
The square root of 1025001445 is about 32015.6437542649. The cubic root of 1025001445 is about 1008.2653114113.
Adding to 1025001445 its reverse (5441005201), we get a palindrome (6466006646).
The spelling of 1025001445 in words is "one billion, twenty-five million, one thousand, four hundred forty-five".
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