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4328231 = 7160961
BaseRepresentation
bin10000100000101100100111
322010220012212
4100200230213
52102000411
6232434035
751534515
oct20405447
98126185
104328231
112496956
12154891b
13b870ab
148094b5
155a768b
hex420b27

4328231 has 4 divisors (see below), whose sum is σ = 4389264. Its totient is φ = 4267200.

The previous prime is 4328227. The next prime is 4328249. The reversal of 4328231 is 1328234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1328234 = 2664117.

It is a cyclic number.

It is not a de Polignac number, because 4328231 - 22 = 4328227 is a prime.

It is a super-2 number, since 2×43282312 = 37467167178722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 411 + 33 + 27 + 83 + 217 + 37 + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4328197 and 4328206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321231) 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, 30410 + ... + 30551.

It is an arithmetic number, because the mean of its divisors is an integer number (1097316).

Almost surely, 24328231 is an apocalyptic number.

4328231 is a deficient number, since it is larger than the sum of its proper divisors (61033).

4328231 is an equidigital number, since it uses as much as digits as its factorization.

4328231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61032.

The product of its digits is 1152, while the sum is 23.

The square root of 4328231 is about 2080.4400976716. The cubic root of 4328231 is about 162.9684282762.

The spelling of 4328231 in words is "four million, three hundred twenty-eight thousand, two hundred thirty-one".

Divisors: 1 71 60961 4328231