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2112420130 = 25211242013
BaseRepresentation
bin111110111101000…
…1111100100100010
312110012220001122121
41331322033210202
513311234421010
6545340254454
7103230163162
oct17572174442
95405801577
102112420130
11994451567
124ab54142a
13278849152
141607a05a2
15c56bc3da
hex7de8f922

2112420130 has 8 divisors (see below), whose sum is σ = 3802356252. Its totient is φ = 844968048.

The previous prime is 2112420127. The next prime is 2112420131. The reversal of 2112420130 is 310242112.

It can be written as a sum of positive squares in 2 ways, for example, as 2075075809 + 37344321 = 45553^2 + 6111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2112420131) 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, 105620997 + ... + 105621016.

Almost surely, 22112420130 is an apocalyptic number.

2112420130 is a deficient number, since it is larger than the sum of its proper divisors (1689936122).

2112420130 is a wasteful number, since it uses less digits than its factorization.

2112420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211242020.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2112420130 is about 45961.0718978572. The cubic root of 2112420130 is about 1283.0988009410.

Adding to 2112420130 its reverse (310242112), we get a palindrome (2422662242).

The spelling of 2112420130 in words is "two billion, one hundred twelve million, four hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 10 211242013 422484026 1056210065 2112420130