Search a number
-
+
489879240 = 23354082327
BaseRepresentation
bin11101001100101…
…111011011001000
31021010210102222120
4131030233123020
52000402113430
6120335451240
715065622234
oct3514573310
91233712876
10489879240
11231584584
12118086b20
137a650596
14490bd5c4
152d019610
hex1d32f6c8

489879240 has 32 divisors (see below), whose sum is σ = 1469638080. Its totient is φ = 130634432.

The previous prime is 489879211. The next prime is 489879253. The reversal of 489879240 is 42978984.

489879240 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 2041044 + ... + 2041283.

It is an arithmetic number, because the mean of its divisors is an integer number (45926190).

Almost surely, 2489879240 is an apocalyptic number.

489879240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489879240 is an abundant number, since it is smaller than the sum of its proper divisors (979758840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489879240 is a wasteful number, since it uses less digits than its factorization.

489879240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082341 (or 4082337 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 489879240 is about 22133.2157627399. The cubic root of 489879240 is about 788.3087463732.

The spelling of 489879240 in words is "four hundred eighty-nine million, eight hundred seventy-nine thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 4082327 8164654 12246981 16329308 20411635 24493962 32658616 40823270 48987924 61234905 81646540 97975848 122469810 163293080 244939620 489879240