Search a number
-
+
490283131 = 1337714087
BaseRepresentation
bin11101001110010…
…010000001111011
31021011112222000111
4131032102001323
52001003030011
6120352245151
715102223612
oct3516220173
91234488014
10490283131
1123182aa78
121182407b7
137a762380
1449186879
152d099121
hex1d39207b

490283131 has 4 divisors (see below), whose sum is σ = 527997232. Its totient is φ = 452569032.

The previous prime is 490283099. The next prime is 490283141. The reversal of 490283131 is 131382094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131382094 = 265691047.

It is a cyclic number.

It is not a de Polignac number, because 490283131 - 25 = 490283099 is a prime.

It is a super-2 number, since 2×4902831312 = 480755097086326322, 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 = 490283093 and 490283102.

It is not an unprimeable number, because it can be changed into a prime (490283141) 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, 18857031 + ... + 18857056.

It is an arithmetic number, because the mean of its divisors is an integer number (131999308).

Almost surely, 2490283131 is an apocalyptic number.

490283131 is a deficient number, since it is larger than the sum of its proper divisors (37714101).

490283131 is a wasteful number, since it uses less digits than its factorization.

490283131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37714100.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 490283131 is about 22142.3379750197. The cubic root of 490283131 is about 788.5253326395.

The spelling of 490283131 in words is "four hundred ninety million, two hundred eighty-three thousand, one hundred thirty-one".

Divisors: 1 13 37714087 490283131