Search a number
-
+
490234984 = 23173799511
BaseRepresentation
bin11101001110000…
…110010001101000
31021011110111222021
4131032012101220
52001000004414
6120351234224
715101633341
oct3516062150
91234414867
10490234984
112317a7888
12118218974
137a746495
14491730c8
152d089c24
hex1d386468

490234984 has 32 divisors (see below), whose sum is σ = 975931200. Its totient is φ = 230065920.

The previous prime is 490234981. The next prime is 490234999. The reversal of 490234984 is 489432094.

It is a self number, because there is not a number n which added to its sum of digits gives 490234984.

It is not an unprimeable number, because it can be changed into a prime (490234981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46789 + ... + 56299.

It is an arithmetic number, because the mean of its divisors is an integer number (30497850).

Almost surely, 2490234984 is an apocalyptic number.

It is an amenable number.

490234984 is a deficient number, since it is larger than the sum of its proper divisors (485696216).

490234984 is a wasteful number, since it uses less digits than its factorization.

490234984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9913 (or 9909 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 490234984 is about 22141.2507325128. The cubic root of 490234984 is about 788.4995200906.

The spelling of 490234984 in words is "four hundred ninety million, two hundred thirty-four thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 17 34 68 136 379 758 1516 3032 6443 9511 12886 19022 25772 38044 51544 76088 161687 323374 646748 1293496 3604669 7209338 14418676 28837352 61279373 122558746 245117492 490234984