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2112000043 = 19257523827
BaseRepresentation
bin111110111100010…
…1001000000101011
312110012002201101211
41331320221000223
513311133000133
6545323253551
7103223463346
oct17570510053
95405081354
102112000043
1199419498a
124ab37a2b7
1327872cb8a
141606d145d
15c5637bcd
hex7de2902b

2112000043 has 16 divisors (see below), whose sum is σ = 2238779520. Its totient is φ = 1986840576.

The previous prime is 2112000041. The next prime is 2112000097. The reversal of 2112000043 is 3400002112.

It is a cyclic number.

It is not a de Polignac number, because 2112000043 - 21 = 2112000041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111999987 and 2112000032.

It is not an unprimeable number, because it can be changed into a prime (2112000041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553396 + ... + 2554222.

It is an arithmetic number, because the mean of its divisors is an integer number (139923720).

Almost surely, 22112000043 is an apocalyptic number.

2112000043 is a deficient number, since it is larger than the sum of its proper divisors (126779477).

2112000043 is a wasteful number, since it uses less digits than its factorization.

2112000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2112000043 is about 45956.5016401379. The cubic root of 2112000043 is about 1283.0137407057.

Adding to 2112000043 its reverse (3400002112), we get a palindrome (5512002155).

The spelling of 2112000043 in words is "two billion, one hundred twelve million, forty-three", and thus it is an aban number.

Divisors: 1 19 257 523 827 4883 9937 15713 134411 212539 432521 2553809 4038241 8217899 111157897 2112000043