Base | Representation |
---|---|
bin | 11101001111011… |
… | …010110111110111 |
3 | 1021012010010022000 |
4 | 131033122313313 |
5 | 2001042101440 |
6 | 120402510343 |
7 | 15104605515 |
oct | 3517326767 |
9 | 1235103260 |
10 | 490581495 |
11 | 231a14158 |
12 | 1183653b3 |
13 | 7a838111 |
14 | 492234b5 |
15 | 2d107730 |
hex | 1d3dadf7 |
490581495 has 64 divisors (see below), whose sum is σ = 929335680. Its totient is φ = 244684800.
The previous prime is 490581493. The next prime is 490581517. The reversal of 490581495 is 594185094.
It is not a de Polignac number, because 490581495 - 21 = 490581493 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 490581495.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (490581493) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414805 + ... + 415985.
It is an arithmetic number, because the mean of its divisors is an integer number (14520870).
Almost surely, 2490581495 is an apocalyptic number.
490581495 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
490581495 is a deficient number, since it is larger than the sum of its proper divisors (438754185).
490581495 is a wasteful number, since it uses less digits than its factorization.
490581495 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1393 (or 1387 counting only the distinct ones).
The product of its (nonzero) digits is 259200, while the sum is 45.
The square root of 490581495 is about 22149.0743598914. The cubic root of 490581495 is about 788.6852537472.
The spelling of 490581495 in words is "four hundred ninety million, five hundred eighty-one thousand, four hundred ninety-five".
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