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2125143 = 33312539
BaseRepresentation
bin1000000110110101010111
310222222011000
420012311113
51021001033
6113314343
724030516
oct10066527
93888130
102125143
111221719
128659b3
135953a7
143d467d
152bea13
hex206d57

2125143 has 16 divisors (see below), whose sum is σ = 3251200. Its totient is φ = 1370520.

The previous prime is 2125111. The next prime is 2125147. The reversal of 2125143 is 3415212.

2125143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2125143 - 25 = 2125111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (203200).

22125143 is an apocalyptic number.

2125143 is a deficient number, since it is larger than the sum of its proper divisors (1126057).

2125143 is a wasteful number, since it uses less digits than its factorization.

2125143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579 (or 2573 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2125143 is about 1457.7870214815. The cubic root of 2125143 is about 128.5669633370.

The spelling of 2125143 in words is "two million, one hundred twenty-five thousand, one hundred forty-three".

Divisors: 1 3 9 27 31 93 279 837 2539 7617 22851 68553 78709 236127 708381 2125143