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144340401 = 348113467
BaseRepresentation
bin10001001101001…
…11010110110001
3101001121020210210
420212213112301
5243422343101
622153414333
73401605332
oct1046472661
9331536723
10144340401
1174527097
124040a3a9
1323b99b2a
1415254289
15ca127d6
hex89a75b1

144340401 has 4 divisors (see below), whose sum is σ = 192453872. Its totient is φ = 96226932.

The previous prime is 144340393. The next prime is 144340411. The reversal of 144340401 is 104043441.

144340401 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, and also an emirpimes, since its reverse is a distinct semiprime: 104043441 = 334681147.

It is not a de Polignac number, because 144340401 - 23 = 144340393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144340411) 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, 24056731 + ... + 24056736.

It is an arithmetic number, because the mean of its divisors is an integer number (48113468).

Almost surely, 2144340401 is an apocalyptic number.

It is an amenable number.

144340401 is a deficient number, since it is larger than the sum of its proper divisors (48113471).

144340401 is an equidigital number, since it uses as much as digits as its factorization.

144340401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48113470.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144340401 is about 12014.1750028872. The cubic root of 144340401 is about 524.5609644746.

Adding to 144340401 its reverse (104043441), we get a palindrome (248383842).

The spelling of 144340401 in words is "one hundred forty-four million, three hundred forty thousand, four hundred one".

Divisors: 1 3 48113467 144340401