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2138411 = 11316271
BaseRepresentation
bin1000001010000100101011
311000122100102
420022010223
51021412121
6113500015
724114302
oct10120453
94018312
102138411
111230690
1287160b
1359b442
143d9439
152c390b
hex20a12b

2138411 has 8 divisors (see below), whose sum is σ = 2408448. Its totient is φ = 1881000.

The previous prime is 2138407. The next prime is 2138419. The reversal of 2138411 is 1148312.

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

It is not a de Polignac number, because 2138411 - 22 = 2138407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138419) 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, 2795 + ... + 3476.

It is an arithmetic number, because the mean of its divisors is an integer number (301056).

22138411 is an apocalyptic number.

2138411 is a deficient number, since it is larger than the sum of its proper divisors (270037).

2138411 is a wasteful number, since it uses less digits than its factorization.

2138411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313.

The product of its digits is 192, while the sum is 20.

The square root of 2138411 is about 1462.3306739585. The cubic root of 2138411 is about 128.8339710491.

Subtracting from 2138411 its reverse (1148312), we obtain a palindrome (990099).

The spelling of 2138411 in words is "two million, one hundred thirty-eight thousand, four hundred eleven".

Divisors: 1 11 31 341 6271 68981 194401 2138411