Search a number
-
+
144848591391 = 376897551971
BaseRepresentation
bin1000011011100110100…
…1100001101000011111
3111211212202011211202010
42012321221201220133
54333122214411031
6150313104002303
713315324466160
oct2067151415037
9454782154663
10144848591391
1156480287669
12240a5600393
131087524a79a
147021559767
153b7b71b246
hex21b9a61a1f

144848591391 has 8 divisors (see below), whose sum is σ = 220721663104. Its totient is φ = 82770623640.

The previous prime is 144848591357. The next prime is 144848591411. The reversal of 144848591391 is 193195848441.

144848591391 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 144848591391 - 29 = 144848590879 is a prime.

It is a super-2 number, since 2×1448485913912 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144848592391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448775965 + ... + 3448776006.

It is an arithmetic number, because the mean of its divisors is an integer number (27590207888).

Almost surely, 2144848591391 is an apocalyptic number.

144848591391 is a deficient number, since it is larger than the sum of its proper divisors (75873071713).

144848591391 is an equidigital number, since it uses as much as digits as its factorization.

144848591391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897551981.

The product of its digits is 4976640, while the sum is 57.

The spelling of 144848591391 in words is "one hundred forty-four billion, eight hundred forty-eight million, five hundred ninety-one thousand, three hundred ninety-one".

Divisors: 1 3 7 21 6897551971 20692655913 48282863797 144848591391