Base | Representation |
---|---|
bin | 11101011000000… |
… | …000000010100001 |
3 | 1021100100101212121 |
4 | 131120000002201 |
5 | 2002131042011 |
6 | 120523024241 |
7 | 15132664504 |
oct | 3530000241 |
9 | 1240311777 |
10 | 492830881 |
11 | 233210154 |
12 | 11906b081 |
13 | 7b144c0a |
14 | 4964b13b |
15 | 2d3ede71 |
hex | 1d6000a1 |
492830881 has 4 divisors (see below), whose sum is σ = 492939952. Its totient is φ = 492721812.
The previous prime is 492830879. The next prime is 492830887. The reversal of 492830881 is 188038294.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 492830881 - 21 = 492830879 is a prime.
It is a super-2 number, since 2×4928308812 = 485764554534472322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (492830887) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47451 + ... + 56896.
It is an arithmetic number, because the mean of its divisors is an integer number (123234988).
Almost surely, 2492830881 is an apocalyptic number.
It is an amenable number.
492830881 is a deficient number, since it is larger than the sum of its proper divisors (109071).
492830881 is a wasteful number, since it uses less digits than its factorization.
492830881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109070.
The product of its (nonzero) digits is 110592, while the sum is 43.
The square root of 492830881 is about 22199.7946161671. The cubic root of 492830881 is about 789.8888274901. Note that the first 4 decimals are identical.
The spelling of 492830881 in words is "four hundred ninety-two million, eight hundred thirty thousand, eight hundred eighty-one".
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