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144312204013 = 2922921730493
BaseRepresentation
bin1000011001100110101…
…1010111101011101101
3111210111100212112120221
42012121223113223231
54331022411012023
6150143543211341
713266122331445
oct2063153275355
9453440775527
10144312204013
115622552790a
1223b75a46b51
13107bb0952c3
146db0211125
153b495b685d
hex2199ad7aed

144312204013 has 8 divisors (see below), whose sum is σ = 149940408600. Its totient is φ = 138727460928.

The previous prime is 144312203957. The next prime is 144312204089. The reversal of 144312204013 is 310402213441.

It can be written as a sum of positive squares in 4 ways, for example, as 97657500004 + 46654704009 = 312502^2 + 215997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144312204013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144312204313) 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, 10858606 + ... + 10871887.

It is an arithmetic number, because the mean of its divisors is an integer number (18742551075).

Almost surely, 2144312204013 is an apocalyptic number.

It is an amenable number.

144312204013 is a deficient number, since it is larger than the sum of its proper divisors (5628204587).

144312204013 is a wasteful number, since it uses less digits than its factorization.

144312204013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21730751.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 144312204013 its reverse (310402213441), we get a palindrome (454714417454).

The spelling of 144312204013 in words is "one hundred forty-four billion, three hundred twelve million, two hundred four thousand, thirteen".

Divisors: 1 29 229 6641 21730493 630184297 4976282897 144312204013