Search a number
-
+
44451421 = 741154883
BaseRepresentation
bin1010100110010…
…0011001011101
310002122100212221
42221210121131
542334421141
64224425341
71046554660
oct251443135
9102570787
1044451421
1123101013
1212a78251
139294a21
145c916d7
153d80bd1
hex2a6465d

44451421 has 8 divisors (see below), whose sum is σ = 52041024. Its totient is φ = 37171680.

The previous prime is 44451389. The next prime is 44451437. The reversal of 44451421 is 12415444.

44451421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44451421 - 25 = 44451389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44451221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77155 + ... + 77728.

It is an arithmetic number, because the mean of its divisors is an integer number (6505128).

Almost surely, 244451421 is an apocalyptic number.

44451421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44451421 is a deficient number, since it is larger than the sum of its proper divisors (7589603).

44451421 is a wasteful number, since it uses less digits than its factorization.

44451421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154931.

The product of its digits is 2560, while the sum is 25.

The square root of 44451421 is about 6667.1898878013. The cubic root of 44451421 is about 354.2380563325.

Adding to 44451421 its reverse (12415444), we get a palindrome (56866865).

The spelling of 44451421 in words is "forty-four million, four hundred fifty-one thousand, four hundred twenty-one".

Divisors: 1 7 41 287 154883 1084181 6350203 44451421