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4286138 = 22143069
BaseRepresentation
bin10000010110011010111010
322001202110212
4100112122322
52044124023
6231511122
751301013
oct20263272
98052425
104286138
11246826a
1215284a2
13b70b9c
147d800a
15599e78
hex4166ba

4286138 has 4 divisors (see below), whose sum is σ = 6429210. Its totient is φ = 2143068.

The previous prime is 4286131. The next prime is 4286147. The reversal of 4286138 is 8316824.

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

It can be written as a sum of positive squares in only one way, i.e., 2362369 + 1923769 = 1537^2 + 1387^2 .

It is a d-powerful number, because it can be written as 411 + 2 + 8 + 6 + 1 + 310 + 85 .

It is not an unprimeable number, because it can be changed into a prime (4286131) 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 as a sum of consecutive naturals, namely, 1071533 + ... + 1071536.

Almost surely, 24286138 is an apocalyptic number.

4286138 is a deficient number, since it is larger than the sum of its proper divisors (2143072).

4286138 is a wasteful number, since it uses less digits than its factorization.

4286138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143071.

The product of its digits is 9216, while the sum is 32.

The square root of 4286138 is about 2070.2990122202. The cubic root of 4286138 is about 162.4384050580.

The spelling of 4286138 in words is "four million, two hundred eighty-six thousand, one hundred thirty-eight".

Divisors: 1 2 2143069 4286138