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144221221013 = 7114811371563
BaseRepresentation
bin1000011001010001000…
…0010011000010010101
3111210021000200010101012
42012110100103002111
54330331113033023
6150130533142005
713263636103052
oct2062420230225
9453230603335
10144221221013
1156189134a51
1223b4b48a905
13107a528aacc
146da20ca029
153b415e3978
hex2194413095

144221221013 has 8 divisors (see below), whose sum is σ = 146351365056. Its totient is φ = 142093823200.

The previous prime is 144221220959. The next prime is 144221221031. The reversal of 144221221013 is 310122122441.

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 144221221013 - 226 = 144154112149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144221221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144221221073) 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, 580631 + ... + 790932.

It is an arithmetic number, because the mean of its divisors is an integer number (18293920632).

Almost surely, 2144221221013 is an apocalyptic number.

It is an amenable number.

144221221013 is a deficient number, since it is larger than the sum of its proper divisors (2130144043).

144221221013 is a wasteful number, since it uses less digits than its factorization.

144221221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373115.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 144221221013 its reverse (310122122441), we get a palindrome (454343343454).

The spelling of 144221221013 in words is "one hundred forty-four billion, two hundred twenty-one million, two hundred twenty-one thousand, thirteen".

Divisors: 1 71 1481 105151 1371563 97380973 2031284803 144221221013