Search a number
-
+
288990486 = 23216055027
BaseRepresentation
bin10001001110011…
…010010100010110
3202010210020102100
4101032122110112
51042440143421
644402022530
710106243601
oct2116322426
9663706370
10288990486
11139144914
1280947a46
1347b448b5
142a549338
151a586c26
hex1139a516

288990486 has 12 divisors (see below), whose sum is σ = 626146092. Its totient is φ = 96330156.

The previous prime is 288990439. The next prime is 288990491. The reversal of 288990486 is 684099882.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8027496 + ... + 8027531.

It is an arithmetic number, because the mean of its divisors is an integer number (52178841).

Almost surely, 2288990486 is an apocalyptic number.

288990486 is an abundant number, since it is smaller than the sum of its proper divisors (337155606).

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

288990486 is a wasteful number, since it uses less digits than its factorization.

288990486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16055035 (or 16055032 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 288990486 is about 16999.7201741676. The cubic root of 288990486 is about 661.1416466674.

The spelling of 288990486 in words is "two hundred eighty-eight million, nine hundred ninety thousand, four hundred eighty-six".

Divisors: 1 2 3 6 9 18 16055027 32110054 48165081 96330162 144495243 288990486