Base | Representation |
---|---|
bin | 111101001000101… |
… | …110000011001001 |
3 | 2122111000202022201 |
4 | 331020232003021 |
5 | 4100034232240 |
6 | 245440120201 |
7 | 34263162121 |
oct | 7510560311 |
9 | 2574022281 |
10 | 1025695945 |
11 | 486a845aa |
12 | 247606061 |
13 | 1346660a1 |
14 | 9a319c81 |
15 | 600a9d9a |
hex | 3d22e0c9 |
1025695945 has 8 divisors (see below), whose sum is σ = 1243524744. Its totient is φ = 812097024.
The previous prime is 1025695927. The next prime is 1025695961. The reversal of 1025695945 is 5495965201.
It can be written as a sum of positive squares in 4 ways, for example, as 41744521 + 983951424 = 6461^2 + 31368^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1025695945 - 27 = 1025695817 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1025695895 and 1025695904.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056934 + ... + 1057903.
It is an arithmetic number, because the mean of its divisors is an integer number (155440593).
Almost surely, 21025695945 is an apocalyptic number.
It is an amenable number.
1025695945 is a deficient number, since it is larger than the sum of its proper divisors (217828799).
1025695945 is an equidigital number, since it uses as much as digits as its factorization.
1025695945 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2114939.
The product of its (nonzero) digits is 486000, while the sum is 46.
The square root of 1025695945 is about 32026.4881777569. The cubic root of 1025695945 is about 1008.4929800877.
The spelling of 1025695945 in words is "one billion, twenty-five million, six hundred ninety-five thousand, nine hundred forty-five".
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