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4221461 = 10938729
BaseRepresentation
bin10000000110101000010101
321221110202102
4100012220111
52040041321
6230251445
750611316
oct20065025
97843672
104221461
112423712
1214b6b85
13b4a60a
147bc60d
15585c0b
hex406a15

4221461 has 4 divisors (see below), whose sum is σ = 4260300. Its totient is φ = 4182624.

The previous prime is 4221449. The next prime is 4221467. The reversal of 4221461 is 1641224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1311025 + 2910436 = 1145^2 + 1706^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221461 - 214 = 4205077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221467) 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, 19256 + ... + 19473.

It is an arithmetic number, because the mean of its divisors is an integer number (1065075).

Almost surely, 24221461 is an apocalyptic number.

It is an amenable number.

4221461 is a deficient number, since it is larger than the sum of its proper divisors (38839).

4221461 is a wasteful number, since it uses less digits than its factorization.

4221461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38838.

The product of its digits is 384, while the sum is 20.

The square root of 4221461 is about 2054.6194294808. The cubic root of 4221461 is about 161.6172057335.

Adding to 4221461 its reverse (1641224), we get a palindrome (5862685).

The spelling of 4221461 in words is "four million, two hundred twenty-one thousand, four hundred sixty-one".

Divisors: 1 109 38729 4221461