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4256231 = 7608033
BaseRepresentation
bin10000001111000111100111
322000020110012
4100033013213
52042144411
6231120435
751114560
oct20170747
98006405
104256231
112447851
12151311b
13b603a5
147cb167
1559118b
hex40f1e7

4256231 has 4 divisors (see below), whose sum is σ = 4864272. Its totient is φ = 3648192.

The previous prime is 4256227. The next prime is 4256233. The reversal of 4256231 is 1326524.

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

It is a cyclic number.

It is not a de Polignac number, because 4256231 - 22 = 4256227 is a prime.

It is a super-3 number, since 3×42562313 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a d-powerful number, because it can be written as 411 + 29 + 5 + 66 + 213 + 38 + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 4256197 and 4256206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304010 + ... + 304023.

It is an arithmetic number, because the mean of its divisors is an integer number (1216068).

Almost surely, 24256231 is an apocalyptic number.

4256231 is a deficient number, since it is larger than the sum of its proper divisors (608041).

4256231 is an equidigital number, since it uses as much as digits as its factorization.

4256231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608040.

The product of its digits is 1440, while the sum is 23.

The square root of 4256231 is about 2063.0634987804. The cubic root of 4256231 is about 162.0597122762.

The spelling of 4256231 in words is "four million, two hundred fifty-six thousand, two hundred thirty-one".

Divisors: 1 7 608033 4256231