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144422441 = 613476823
BaseRepresentation
bin10001001101110…
…11011000101001
3101001202102100022
420212323120221
5243433004231
622155250225
73402366452
oct1046733051
9331672308
10144422441
1174582799
1240449975
1323bc8287
1415276129
15ca2bc7b
hex89bb629

144422441 has 8 divisors (see below), whose sum is σ = 147234624. Its totient is φ = 141624720.

The previous prime is 144422437. The next prime is 144422461. The reversal of 144422441 is 144224441.

144422441 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 a cyclic number.

It is not a de Polignac number, because 144422441 - 22 = 144422437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144422441.

It is not an unprimeable number, because it can be changed into a prime (144422431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17756 + ... + 24578.

It is an arithmetic number, because the mean of its divisors is an integer number (18404328).

Almost surely, 2144422441 is an apocalyptic number.

It is an amenable number.

144422441 is a deficient number, since it is larger than the sum of its proper divisors (2812183).

144422441 is an equidigital number, since it uses as much as digits as its factorization.

144422441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its digits is 4096, while the sum is 26.

The square root of 144422441 is about 12017.5888180616. The cubic root of 144422441 is about 524.6603287330.

Adding to 144422441 its reverse (144224441), we get a palindrome (288646882).

The spelling of 144422441 in words is "one hundred forty-four million, four hundred twenty-two thousand, four hundred forty-one".

Divisors: 1 61 347 6823 21167 416203 2367581 144422441