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2142230080 = 2656694469
BaseRepresentation
bin111111110101111…
…1101011001000000
312112021222120012211
41333223331121000
513341402330310
6552323231504
7104041440514
oct17753753100
95467876184
102142230080
119aa262191
124b9518594
13281a85783
14164720144
15c8109c8a
hex7fafd640

2142230080 has 28 divisors (see below), whose sum is σ = 5101186140. Its totient is φ = 856891904.

The previous prime is 2142230071. The next prime is 2142230119. The reversal of 2142230080 is 800322412.

It can be written as a sum of positive squares in 2 ways, for example, as 724255744 + 1417974336 = 26912^2 + 37656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3346915 + ... + 3347554.

Almost surely, 22142230080 is an apocalyptic number.

2142230080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142230080 is an abundant number, since it is smaller than the sum of its proper divisors (2958956060).

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

2142230080 is an equidigital number, since it uses as much as digits as its factorization.

2142230080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694486 (or 6694476 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2142230080 is about 46284.2314400920. The cubic root of 2142230080 is about 1289.1062214215.

Adding to 2142230080 its reverse (800322412), we get a palindrome (2942552492).

The spelling of 2142230080 in words is "two billion, one hundred forty-two million, two hundred thirty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 6694469 13388938 26777876 33472345 53555752 66944690 107111504 133889380 214223008 267778760 428446016 535557520 1071115040 2142230080