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4227431 = 13325187
BaseRepresentation
bin10000001000000101100111
321221202221112
4100020011213
52040234211
6230335235
750634605
oct20100547
97852845
104227431
11242814a
1214ba51b
13b50250
147c0875
1558788b
hex408167

4227431 has 4 divisors (see below), whose sum is σ = 4552632. Its totient is φ = 3902232.

The previous prime is 4227427. The next prime is 4227451. The reversal of 4227431 is 1347224.

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 4227431 - 22 = 4227427 is a prime.

It is a super-2 number, since 2×42274312 = 35742345719522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 43 + 2 + 215 + 72 + 411 + 35 + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4227397 and 4227406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4227401) 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, 162581 + ... + 162606.

It is an arithmetic number, because the mean of its divisors is an integer number (1138158).

Almost surely, 24227431 is an apocalyptic number.

4227431 is a deficient number, since it is larger than the sum of its proper divisors (325201).

4227431 is a wasteful number, since it uses less digits than its factorization.

4227431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325200.

The product of its digits is 1344, while the sum is 23.

The square root of 4227431 is about 2056.0717399935. The cubic root of 4227431 is about 161.6933563238.

The spelling of 4227431 in words is "four million, two hundred twenty-seven thousand, four hundred thirty-one".

Divisors: 1 13 325187 4227431