Search a number
-
+
490128814 = 271271811523
BaseRepresentation
bin11101001101101…
…100010110101110
31021011021010100001
4131031230112232
52000433110224
6120345054514
715101011660
oct3515542656
91234233301
10490128814
1123173503a
1211818743a
137a70a066
1449146530
152d068544
hex1d36c5ae

490128814 has 32 divisors (see below), whose sum is σ = 852074496. Its totient is φ = 207113760.

The previous prime is 490128803. The next prime is 490128823. The reversal of 490128814 is 418821094.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321057 + ... + 322579.

It is an arithmetic number, because the mean of its divisors is an integer number (26627328).

Almost surely, 2490128814 is an apocalyptic number.

490128814 is a deficient number, since it is larger than the sum of its proper divisors (361945682).

490128814 is a wasteful number, since it uses less digits than its factorization.

490128814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 490128814 is about 22138.8530416551. The cubic root of 490128814 is about 788.4425943027.

The spelling of 490128814 in words is "four hundred ninety million, one hundred twenty-eight thousand, eight hundred fourteen".

Divisors: 1 2 7 14 127 181 254 362 889 1267 1523 1778 2534 3046 10661 21322 22987 45974 160909 193421 275663 321818 386842 551326 1353947 1929641 2707894 3859282 35009201 70018402 245064407 490128814