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4213239 = 31977129
BaseRepresentation
bin10000000100100111110111
321221001110220
4100010213313
52034310424
6230145423
750545332
oct20044767
97831426
104213239
112418518
1214b2273
13b46954
147b9619
15583579
hex4049f7

4213239 has 8 divisors (see below), whose sum is σ = 5646960. Its totient is φ = 2794176.

The previous prime is 4213217. The next prime is 4213277. The reversal of 4213239 is 9323124.

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

It is not a de Polignac number, because 4213239 - 28 = 4212983 is a prime.

It is a super-2 number, since 2×42132392 = 35502765742242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4213639) 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 in 7 ways as a sum of consecutive naturals, for example, 2974 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (705870).

Almost surely, 24213239 is an apocalyptic number.

4213239 is a deficient number, since it is larger than the sum of its proper divisors (1433721).

4213239 is a wasteful number, since it uses less digits than its factorization.

4213239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7329.

The product of its digits is 1296, while the sum is 24.

The square root of 4213239 is about 2052.6175971184. The cubic root of 4213239 is about 161.5122120439.

The spelling of 4213239 in words is "four million, two hundred thirteen thousand, two hundred thirty-nine".

Divisors: 1 3 197 591 7129 21387 1404413 4213239