Base | Representation |
---|---|
bin | 11101001110000… |
… | …101010011101111 |
3 | 1021011110022112120 |
4 | 131032011103233 |
5 | 2000444343043 |
6 | 120351204023 |
7 | 15101615652 |
oct | 3516052357 |
9 | 1234408476 |
10 | 490231023 |
11 | 2317a4907 |
12 | 118216613 |
13 | 7a744739 |
14 | 49171899 |
15 | 2d088983 |
hex | 1d3854ef |
490231023 has 16 divisors (see below), whose sum is σ = 692693856. Its totient is φ = 307328000.
The previous prime is 490230997. The next prime is 490231033. The reversal of 490231023 is 320132094.
It is a cyclic number.
It is not a de Polignac number, because 490231023 - 25 = 490230991 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 490230984 and 490231002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (490231033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66523 + ... + 73523.
It is an arithmetic number, because the mean of its divisors is an integer number (43293366).
Almost surely, 2490231023 is an apocalyptic number.
490231023 is a deficient number, since it is larger than the sum of its proper divisors (202462833).
490231023 is a wasteful number, since it uses less digits than its factorization.
490231023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8394.
The product of its (nonzero) digits is 1296, while the sum is 24.
The square root of 490231023 is about 22141.1612839074. The cubic root of 490231023 is about 788.4973964457.
The spelling of 490231023 in words is "four hundred ninety million, two hundred thirty-one thousand, twenty-three".
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