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490751066 = 21318875041
BaseRepresentation
bin11101010000000…
…100010001011010
31021012102201220102
4131100010101122
52001113013231
6120410255402
715106213061
oct3520042132
91235381812
10490751066
1123201a5a3
12118427562
137a897360
14492691d8
152d13cacb
hex1d40445a

490751066 has 8 divisors (see below), whose sum is σ = 792751764. Its totient is φ = 226500480.

The previous prime is 490751059. The next prime is 490751083. The reversal of 490751066 is 660157094.

It can be written as a sum of positive squares in 2 ways, for example, as 470239225 + 20511841 = 21685^2 + 4529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9437495 + ... + 9437546.

Almost surely, 2490751066 is an apocalyptic number.

490751066 is a deficient number, since it is larger than the sum of its proper divisors (302000698).

490751066 is a wasteful number, since it uses less digits than its factorization.

490751066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18875056.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 490751066 is about 22152.9019769420. The cubic root of 490751066 is about 788.7761137725.

The spelling of 490751066 in words is "four hundred ninety million, seven hundred fifty-one thousand, sixty-six".

Divisors: 1 2 13 26 18875041 37750082 245375533 490751066