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289498384 = 2472584807
BaseRepresentation
bin10001010000010…
…110010100010000
3202011202001010101
4101100112110100
51043102422014
644420542144
710113460420
oct2120262420
9664661111
10289498384
1113946146a
1280b51954
1347c91b26
142a63c480
151a637474
hex11416510

289498384 has 20 divisors (see below), whose sum is σ = 641032384. Its totient is φ = 124070688.

The previous prime is 289498381. The next prime is 289498409. The reversal of 289498384 is 483894982.

It is a super-2 number, since 2×2894983842 = 167618628677222912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289498381) 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, 1292292 + ... + 1292515.

Almost surely, 2289498384 is an apocalyptic number.

It is an amenable number.

289498384 is an abundant number, since it is smaller than the sum of its proper divisors (351534000).

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

289498384 is a wasteful number, since it uses less digits than its factorization.

289498384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584822 (or 2584816 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 289498384 is about 17014.6520387577. The cubic root of 289498384 is about 661.5287366822.

The spelling of 289498384 in words is "two hundred eighty-nine million, four hundred ninety-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 2584807 5169614 10339228 18093649 20678456 36187298 41356912 72374596 144749192 289498384