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2138041 = 19710853
BaseRepresentation
bin1000001001111110111001
311000121211201
420021332321
51021404131
6113454201
724113233
oct10117671
94017751
102138041
111230384
12871361
1359b219
143d9253
152c3761
hex209fb9

2138041 has 4 divisors (see below), whose sum is σ = 2149092. Its totient is φ = 2126992.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138041 is 1408312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1742400 + 395641 = 1320^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 2138041 - 23 = 2138033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138041) 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, 5230 + ... + 5623.

It is an arithmetic number, because the mean of its divisors is an integer number (537273).

22138041 is an apocalyptic number.

It is an amenable number.

2138041 is a deficient number, since it is larger than the sum of its proper divisors (11051).

2138041 is a wasteful number, since it uses less digits than its factorization.

2138041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2138041 is about 1462.2041581120. The cubic root of 2138041 is about 128.8265400924.

The spelling of 2138041 in words is "two million, one hundred thirty-eight thousand, forty-one".

Divisors: 1 197 10853 2138041