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2287982940 = 2235227167987
BaseRepresentation
bin1000100001011111…
…1101100101011100
312220110020120112220
42020113331211130
514141210423230
61015011225340
7110461351125
oct21027754534
95813216486
102287982940
11a745634a1
1253a2a8250
132a6028479
14179c2104c
15d5cead10
hex885fd95c

2287982940 has 48 divisors (see below), whose sum is σ = 6434612352. Its totient is φ = 607437376.

The previous prime is 2287982923. The next prime is 2287982953. The reversal of 2287982940 is 492897822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70374 + ... + 97613.

It is an arithmetic number, because the mean of its divisors is an integer number (134054424).

Almost surely, 22287982940 is an apocalyptic number.

2287982940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2287982940 is an abundant number, since it is smaller than the sum of its proper divisors (4146629412).

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

2287982940 is a wasteful number, since it uses less digits than its factorization.

2287982940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168226 (or 168224 counting only the distinct ones).

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

The square root of 2287982940 is about 47832.8646434645. The cubic root of 2287982940 is about 1317.7031798287.

The spelling of 2287982940 in words is "two billion, two hundred eighty-seven million, nine hundred eighty-two thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 227 454 681 908 1135 1362 2270 2724 3405 4540 6810 13620 167987 335974 503961 671948 839935 1007922 1679870 2015844 2519805 3359740 5039610 10079220 38133049 76266098 114399147 152532196 190665245 228798294 381330490 457596588 571995735 762660980 1143991470 2287982940