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144044401 = 479300719
BaseRepresentation
bin10001001010111…
…11000101110001
3101001001012202211
420211133011301
5243333410101
622143212121
73366233344
oct1045370561
9331035684
10144044401
1174344766
12402a7041
1323ac5197
14151b845b
15c9a4c51
hex895f171

144044401 has 4 divisors (see below), whose sum is σ = 144345600. Its totient is φ = 143743204.

The previous prime is 144044399. The next prime is 144044419. The reversal of 144044401 is 104440441.

It is a happy number.

144044401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 144044401 - 21 = 144044399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144044431) 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, 149881 + ... + 150838.

It is an arithmetic number, because the mean of its divisors is an integer number (36086400).

Almost surely, 2144044401 is an apocalyptic number.

It is an amenable number.

144044401 is a deficient number, since it is larger than the sum of its proper divisors (301199).

144044401 is an equidigital number, since it uses as much as digits as its factorization.

144044401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301198.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 144044401 is about 12001.8498990781. The cubic root of 144044401 is about 524.2021453144.

Adding to 144044401 its reverse (104440441), we get a palindrome (248484842).

The spelling of 144044401 in words is "one hundred forty-four million, forty-four thousand, four hundred one".

Divisors: 1 479 300719 144044401