Base | Representation |
---|---|
bin | 110001011111001… |
… | …010011111100111 |
3 | 2010212021020001021 |
4 | 301133022133213 |
5 | 3200021044111 |
6 | 214215112011 |
7 | 26401014526 |
oct | 6137123747 |
9 | 2125236037 |
10 | 830253031 |
11 | 396724433 |
12 | 1b2072607 |
13 | 1030160aa |
14 | 7c3a24bd |
15 | 4cd50d71 |
hex | 317ca7e7 |
830253031 has 4 divisors (see below), whose sum is σ = 833561064. Its totient is φ = 826945000.
The previous prime is 830253029. The next prime is 830253041. The reversal of 830253031 is 130352038.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 830253031 - 21 = 830253029 is a prime.
It is a super-2 number, since 2×8302530312 = 1378640190969373922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 830252987 and 830253005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (830253041) 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 3 ways as a sum of consecutive naturals, for example, 1653640 + ... + 1654141.
It is an arithmetic number, because the mean of its divisors is an integer number (208390266).
Almost surely, 2830253031 is an apocalyptic number.
830253031 is a deficient number, since it is larger than the sum of its proper divisors (3308033).
830253031 is a wasteful number, since it uses less digits than its factorization.
830253031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3308032.
The product of its (nonzero) digits is 2160, while the sum is 25.
The square root of 830253031 is about 28814.1116642523. Note that the first 3 decimals coincide. The cubic root of 830253031 is about 939.8751271424.
The spelling of 830253031 in words is "eight hundred thirty million, two hundred fifty-three thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •