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490348692985 = 5344928434253
BaseRepresentation
bin1110010001010110000…
…11110100010111111001
31201212200020120111222011
413020223003310113321
531013213231133420
61013132454125521
750266204056124
oct7105303642771
91655606514864
10490348692985
11179a57065708
127b0489508a1
1337316779918
1419a3950b3bb
15cb4d6a195a
hex722b0f45f9

490348692985 has 8 divisors (see below), whose sum is σ = 588589057800. Its totient is φ = 392165203584.

The previous prime is 490348692973. The next prime is 490348692997. The reversal of 490348692985 is 589296843094.

It is an interprime number because it is at equal distance from previous prime (490348692973) and next prime (490348692997).

It can be written as a sum of positive squares in 4 ways, for example, as 10361611264 + 479987081721 = 101792^2 + 692811^2 .

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 490348692985 - 29 = 490348692473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490348692985.

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, 14199882 + ... + 14234371.

It is an arithmetic number, because the mean of its divisors is an integer number (73573632225).

Almost surely, 2490348692985 is an apocalyptic number.

It is an amenable number.

490348692985 is a deficient number, since it is larger than the sum of its proper divisors (98240364815).

490348692985 is a wasteful number, since it uses less digits than its factorization.

490348692985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28437707.

The product of its (nonzero) digits is 134369280, while the sum is 67.

The spelling of 490348692985 in words is "four hundred ninety billion, three hundred forty-eight million, six hundred ninety-two thousand, nine hundred eighty-five".

Divisors: 1 5 3449 17245 28434253 142171265 98069738597 490348692985