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2885138 = 21784857
BaseRepresentation
bin1011000000011000010010
312102120122222
423000120102
51214311023
6141501042
733344324
oct13003022
95376588
102885138
1116a0713
12b71782
137a02a9
14551614
153becc8
hex2c0612

2885138 has 8 divisors (see below), whose sum is σ = 4582332. Its totient is φ = 1357696.

The previous prime is 2885119. The next prime is 2885173. The reversal of 2885138 is 8315882.

It can be written as a sum of positive squares in 2 ways, for example, as 2879809 + 5329 = 1697^2 + 73^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2885098 and 2885107.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42395 + ... + 42462.

22885138 is an apocalyptic number.

2885138 is a deficient number, since it is larger than the sum of its proper divisors (1697194).

2885138 is a wasteful number, since it uses less digits than its factorization.

2885138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84876.

The product of its digits is 15360, while the sum is 35.

The square root of 2885138 is about 1698.5693980524. The cubic root of 2885138 is about 142.3602898679.

The spelling of 2885138 in words is "two million, eight hundred eighty-five thousand, one hundred thirty-eight".

Divisors: 1 2 17 34 84857 169714 1442569 2885138