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2287892320 = 2557347887
BaseRepresentation
bin1000100001011110…
…0111011101100000
312220110001222020121
42020113213131200
514141200023240
61015005250024
7110460523000
oct21027473540
95813058217
102287892320
11a745013aa
1253a263914
132a5cc614c
14179bda000
15d5cce04a
hex885e7760

2287892320 has 192 divisors, whose sum is σ = 6444748800. Its totient is φ = 766864896.

The previous prime is 2287892293. The next prime is 2287892333. The reversal of 2287892320 is 232987822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2578917 + ... + 2579803.

It is an arithmetic number, because the mean of its divisors is an integer number (33566400).

Almost surely, 22287892320 is an apocalyptic number.

2287892320 is a gapful number since it is divisible by the number (20) 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 2287892320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3222374400).

2287892320 is an abundant number, since it is smaller than the sum of its proper divisors (4156856480).

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

2287892320 is an equidigital number, since it uses as much as digits as its factorization.

2287892320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2287892320 is about 47831.9173774165. The cubic root of 2287892320 is about 1317.6857828693.

The spelling of 2287892320 in words is "two billion, two hundred eighty-seven million, eight hundred ninety-two thousand, three hundred twenty".