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490611245 = 5175771897
BaseRepresentation
bin11101001111100…
…010001000101101
31021012011122002212
4131033202020231
52001044024440
6120403300205
715105061325
oct3517421055
91235148085
10490611245
11231a34543
1211837a665
137a848817
1449230285
152d111465
hex1d3e222d

490611245 has 8 divisors (see below), whose sum is σ = 623364984. Its totient is φ = 369401344.

The previous prime is 490611181. The next prime is 490611259. The reversal of 490611245 is 542116094.

It can be written as a sum of positive squares in 4 ways, for example, as 101022601 + 389588644 = 10051^2 + 19738^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 490611245 - 26 = 490611181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885864 + ... + 2886033.

It is an arithmetic number, because the mean of its divisors is an integer number (77920623).

Almost surely, 2490611245 is an apocalyptic number.

It is an amenable number.

490611245 is a deficient number, since it is larger than the sum of its proper divisors (132753739).

490611245 is a wasteful number, since it uses less digits than its factorization.

490611245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5771919.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 490611245 is about 22149.7459353375. The cubic root of 490611245 is about 788.7011959928.

The spelling of 490611245 in words is "four hundred ninety million, six hundred eleven thousand, two hundred forty-five".

Divisors: 1 5 17 85 5771897 28859485 98122249 490611245