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289989908208 = 24327211133173127
BaseRepresentation
bin1000011100001001011…
…11101101011011110000
31000201111220011200021200
410032010233231123300
514222344404030313
6341115230051200
726644135356300
oct4160457553360
91021456150250
10289989908208
11101a9081a170
1248251049b00
1321466019b80
141006d913600
1578239aab73
hex4384bed6f0

289989908208 has 1440 divisors, whose sum is σ = 1169717133312. Its totient is φ = 65840947200.

The previous prime is 289989908207. The next prime is 289989908279. The reversal of 289989908208 is 802809989982.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289989908207) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2283385041 + ... + 2283385167.

Almost surely, 2289989908208 is an apocalyptic number.

289989908208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289989908208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584858566656).

289989908208 is an abundant number, since it is smaller than the sum of its proper divisors (879727225104).

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

289989908208 is a wasteful number, since it uses less digits than its factorization.

289989908208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 72.

The spelling of 289989908208 in words is "two hundred eighty-nine billion, nine hundred eighty-nine million, nine hundred eight thousand, two hundred eight".