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494816439 = 31312687601
BaseRepresentation
bin11101011111100…
…100110010110111
31021111002021112210
4131133210302313
52003133111224
6121033344503
715155604345
oct3537446267
91244067483
10494816439
11234346a07
12119868133
137b68b8c0
1449a06995
152d692429
hex1d7e4cb7

494816439 has 8 divisors (see below), whose sum is σ = 710505712. Its totient is φ = 304502400.

The previous prime is 494816431. The next prime is 494816459. The reversal of 494816439 is 934618494.

It is a happy number.

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

It is not a de Polignac number, because 494816439 - 23 = 494816431 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 (494816431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6343762 + ... + 6343839.

It is an arithmetic number, because the mean of its divisors is an integer number (88813214).

Almost surely, 2494816439 is an apocalyptic number.

494816439 is a deficient number, since it is larger than the sum of its proper divisors (215689273).

494816439 is a wasteful number, since it uses less digits than its factorization.

494816439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12687617.

The product of its digits is 746496, while the sum is 48.

The square root of 494816439 is about 22244.4698520778. The cubic root of 494816439 is about 790.9481959826.

The spelling of 494816439 in words is "four hundred ninety-four million, eight hundred sixteen thousand, four hundred thirty-nine".

Divisors: 1 3 13 39 12687601 38062803 164938813 494816439