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490068456 = 23320419519
BaseRepresentation
bin11101001101011…
…101100111101000
31021011011001112120
4131031131213220
52000424142311
6120343511240
715100341003
oct3515354750
91234131476
10490068456
112316a3759
12118158520
137a6b8747
144912c53a
152d055706
hex1d35d9e8

490068456 has 16 divisors (see below), whose sum is σ = 1225171200. Its totient is φ = 163356144.

The previous prime is 490068451. The next prime is 490068461. The reversal of 490068456 is 654860094.

It is an interprime number because it is at equal distance from previous prime (490068451) and next prime (490068461).

It is not an unprimeable number, because it can be changed into a prime (490068451) 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 3 ways as a sum of consecutive naturals, for example, 10209736 + ... + 10209783.

It is an arithmetic number, because the mean of its divisors is an integer number (76573200).

Almost surely, 2490068456 is an apocalyptic number.

It is an amenable number.

490068456 is an abundant number, since it is smaller than the sum of its proper divisors (735102744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490068456 is a wasteful number, since it uses less digits than its factorization.

490068456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20419528 (or 20419524 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 490068456 is about 22137.4898306018. The cubic root of 490068456 is about 788.4102281366.

The spelling of 490068456 in words is "four hundred ninety million, sixty-eight thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 24 20419519 40839038 61258557 81678076 122517114 163356152 245034228 490068456