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490759678 = 21132171503
BaseRepresentation
bin11101010000000…
…110010111111110
31021012110011201101
4131100012113332
52001113302203
6120410403314
715106250143
oct3520062776
91235404641
10490759678
11232026012
1211843053a
137a89b256
144926c3ca
152d14041d
hex1d4065fe

490759678 has 8 divisors (see below), whose sum is σ = 742654368. Its totient is φ = 243208224.

The previous prime is 490759669. The next prime is 490759679. The reversal of 490759678 is 876957094.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490759679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085526 + ... + 1085977.

It is an arithmetic number, because the mean of its divisors is an integer number (92831796).

Almost surely, 2490759678 is an apocalyptic number.

490759678 is a deficient number, since it is larger than the sum of its proper divisors (251894690).

490759678 is a wasteful number, since it uses less digits than its factorization.

490759678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171618.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 490759678 is about 22153.0963524289. The cubic root of 490759678 is about 788.7807277208.

The spelling of 490759678 in words is "four hundred ninety million, seven hundred fifty-nine thousand, six hundred seventy-eight".

Divisors: 1 2 113 226 2171503 4343006 245379839 490759678