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490389093 = 3331585889
BaseRepresentation
bin11101001110101…
…011111001100101
31021011202100101000
4131032223321211
52001014422333
6120354423513
715103144545
oct3516537145
91234670330
10490389093
112318a2647
12118291b99
137a79b67c
14491b3325
152d0ba713
hex1d3abe65

490389093 has 16 divisors (see below), whose sum is σ = 749939200. Its totient is φ = 316379520.

The previous prime is 490389091. The next prime is 490389127. The reversal of 490389093 is 390983094.

It is not a de Polignac number, because 490389093 - 21 = 490389091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490389091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292108 + ... + 293781.

It is an arithmetic number, because the mean of its divisors is an integer number (46871200).

Almost surely, 2490389093 is an apocalyptic number.

It is an amenable number.

490389093 is a deficient number, since it is larger than the sum of its proper divisors (259550107).

490389093 is a wasteful number, since it uses less digits than its factorization.

490389093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585929 (or 585923 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 490389093 is about 22144.7305921747. The cubic root of 490389093 is about 788.5821349900.

The spelling of 490389093 in words is "four hundred ninety million, three hundred eighty-nine thousand, ninety-three".

Divisors: 1 3 9 27 31 93 279 837 585889 1757667 5273001 15819003 18162559 54487677 163463031 490389093