Base | Representation |
---|---|
bin | 111101011110000… |
… | …001111011011101 |
3 | 2122212112120111100 |
4 | 331132001323131 |
5 | 4103002014042 |
6 | 250155543313 |
7 | 34361520135 |
oct | 7536017335 |
9 | 2585476440 |
10 | 1031282397 |
11 | 48a14a802 |
12 | 24945ab39 |
13 | 135870a92 |
14 | 9ad71ac5 |
15 | 6081024c |
hex | 3d781edd |
1031282397 has 6 divisors (see below), whose sum is σ = 1489630142. Its totient is φ = 687521592.
The previous prime is 1031282393. The next prime is 1031282429. The reversal of 1031282397 is 7932821301.
It can be written as a sum of positive squares in only one way, i.e., 1023296121 + 7986276 = 31989^2 + 2826^2 .
It is not a de Polignac number, because 1031282397 - 22 = 1031282393 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031282393) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57293458 + ... + 57293475.
Almost surely, 21031282397 is an apocalyptic number.
It is an amenable number.
1031282397 is a deficient number, since it is larger than the sum of its proper divisors (458347745).
1031282397 is a wasteful number, since it uses less digits than its factorization.
1031282397 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114586939 (or 114586936 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 1031282397 is about 32113.5858633071. The cubic root of 1031282397 is about 1010.3205847662.
The spelling of 1031282397 in words is "one billion, thirty-one million, two hundred eighty-two thousand, three hundred ninety-seven".
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