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2138135 = 5795413
BaseRepresentation
bin1000001010000000010111
311000121222012
420022000113
51021410020
6113454435
724113426
oct10120027
94017865
102138135
11123045a
1287141b
1359b28c
143d92bd
152c37c5
hex20a017

2138135 has 8 divisors (see below), whose sum is σ = 2598720. Its totient is φ = 1688544.

The previous prime is 2138093. The next prime is 2138137. The reversal of 2138135 is 5318312.

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 2138135 - 28 = 2137879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2138135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2312 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (324840).

22138135 is an apocalyptic number.

2138135 is a deficient number, since it is larger than the sum of its proper divisors (460585).

2138135 is an equidigital number, since it uses as much as digits as its factorization.

2138135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497.

The product of its digits is 720, while the sum is 23.

The square root of 2138135 is about 1462.2363010129. The cubic root of 2138135 is about 128.8284280383.

The spelling of 2138135 in words is "two million, one hundred thirty-eight thousand, one hundred thirty-five".

Divisors: 1 5 79 395 5413 27065 427627 2138135