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244421 = 2310627
BaseRepresentation
bin111011101011000101
3110102021122
4323223011
530310141
65123325
72035412
oct735305
9412248
10244421
11157701
12b9545
1387338
1465109
154c64b
hex3bac5

244421 has 4 divisors (see below), whose sum is σ = 255072. Its totient is φ = 233772.

The previous prime is 244411. The next prime is 244423. The reversal of 244421 is 124442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 244421 - 26 = 244357 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244423) 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 3 ways as a sum of consecutive naturals, for example, 5291 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (63768).

2244421 is an apocalyptic number.

It is an amenable number.

244421 is a deficient number, since it is larger than the sum of its proper divisors (10651).

244421 is a wasteful number, since it uses less digits than its factorization.

244421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10650.

The product of its digits is 256, while the sum is 17.

The square root of 244421 is about 494.3895225427. The cubic root of 244421 is about 62.5239161804.

Adding to 244421 its reverse (124442), we get a palindrome (368863).

The spelling of 244421 in words is "two hundred forty-four thousand, four hundred twenty-one", and thus it is an iban number.

Divisors: 1 23 10627 244421