Base | Representation |
---|---|
bin | 111101001000110… |
… | …000100101011011 |
3 | 2122111001021120101 |
4 | 331020300211123 |
5 | 4100040100311 |
6 | 245440240231 |
7 | 34263234316 |
oct | 7510604533 |
9 | 2574037511 |
10 | 1025706331 |
11 | 486a91391 |
12 | 247610077 |
13 | 13466aa30 |
14 | 9a31d97d |
15 | 600acec1 |
hex | 3d23095b |
1025706331 has 8 divisors (see below), whose sum is σ = 1140239744. Its totient is φ = 916263360.
The previous prime is 1025706329. The next prime is 1025706349. The reversal of 1025706331 is 1336075201.
1025706331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 1025706331 - 21 = 1025706329 is a prime.
It is a super-2 number, since 2×10257063312 = 2104146954906963122, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1025706331.
It is not an unprimeable number, because it can be changed into a prime (1025706131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272186 + ... + 1272991.
It is an arithmetic number, because the mean of its divisors is an integer number (142529968).
Almost surely, 21025706331 is an apocalyptic number.
1025706331 is a deficient number, since it is larger than the sum of its proper divisors (114533413).
1025706331 is a wasteful number, since it uses less digits than its factorization.
1025706331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2545221.
The product of its (nonzero) digits is 3780, while the sum is 28.
The square root of 1025706331 is about 32026.6503243783. The cubic root of 1025706331 is about 1008.4963840115.
The spelling of 1025706331 in words is "one billion, twenty-five million, seven hundred six thousand, three hundred thirty-one".
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