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490028903 = 71343125231
BaseRepresentation
bin11101001101010…
…011111101100111
31021011002001021122
4131031103331213
52000421411103
6120343004155
715100114460
oct3515237547
91234061248
10490028903
11231676a71
1211813965b
137a6a3740
144911bd67
152d048b38
hex1d353f67

490028903 has 16 divisors (see below), whose sum is σ = 617143296. Its totient is φ = 378695520.

The previous prime is 490028899. The next prime is 490028941. The reversal of 490028903 is 309820094.

It is not a de Polignac number, because 490028903 - 22 = 490028899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490028963) 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 15 ways as a sum of consecutive naturals, for example, 58703 + ... + 66528.

It is an arithmetic number, because the mean of its divisors is an integer number (38571456).

Almost surely, 2490028903 is an apocalyptic number.

490028903 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

490028903 is a deficient number, since it is larger than the sum of its proper divisors (127114393).

490028903 is a wasteful number, since it uses less digits than its factorization.

490028903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125294.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 490028903 is about 22136.5964637746. The cubic root of 490028903 is about 788.3890169308.

Adding to 490028903 its reverse (309820094), we get a palindrome (799848997).

The spelling of 490028903 in words is "four hundred ninety million, twenty-eight thousand, nine hundred three".

Divisors: 1 7 13 43 91 301 559 3913 125231 876617 1628003 5384933 11396021 37694531 70004129 490028903