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144211201421 = 7291483479029
BaseRepresentation
bin1000011001001110101…
…0000100110110001101
3111210020022211002002012
42012103222010312031
54330321031421141
6150125534311005
713263454662320
oct2062352046615
9453208732065
10144211201421
11561835110a1
1223b48058465
13107a3190361
146da0a3c7b7
153b407b4ceb
hex2193a84d8d

144211201421 has 16 divisors (see below), whose sum is σ = 170611324800. Its totient is φ = 119266475328.

The previous prime is 144211201391. The next prime is 144211201441. The reversal of 144211201421 is 124102112441.

It is not a de Polignac number, because 144211201421 - 214 = 144211185037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144211201441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61535 + ... + 540563.

It is an arithmetic number, because the mean of its divisors is an integer number (10663207800).

Almost surely, 2144211201421 is an apocalyptic number.

It is an amenable number.

144211201421 is a deficient number, since it is larger than the sum of its proper divisors (26400123379).

144211201421 is a wasteful number, since it uses less digits than its factorization.

144211201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480548.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 144211201421 its reverse (124102112441), we get a palindrome (268313313862).

The spelling of 144211201421 in words is "one hundred forty-four billion, two hundred eleven million, two hundred one thousand, four hundred twenty-one".

Divisors: 1 7 29 203 1483 10381 43007 301049 479029 3353203 13891841 97242887 710400007 4972800049 20601600203 144211201421