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2128043 = 17151829
BaseRepresentation
bin1000000111100010101011
311000010010102
420013202223
51021044133
6113340015
724042131
oct10074253
94003112
102128043
111223915
1286760b
135967c8
143d5751
152c07e8
hex2078ab

2128043 has 8 divisors (see below), whose sum is σ = 2270880. Its totient is φ = 1987200.

The previous prime is 2128039. The next prime is 2128051. The reversal of 2128043 is 3408212.

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

It is a cyclic number.

It is not a de Polignac number, because 2128043 - 22 = 2128039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (283860).

22128043 is an apocalyptic number.

2128043 is a deficient number, since it is larger than the sum of its proper divisors (142837).

2128043 is a wasteful number, since it uses less digits than its factorization.

2128043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2128043 is about 1458.7813407087. The cubic root of 2128043 is about 128.6254181839.

The spelling of 2128043 in words is "two million, one hundred twenty-eight thousand, forty-three".

Divisors: 1 17 151 829 2567 14093 125179 2128043