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144230414221 = 17411637011811
BaseRepresentation
bin1000011001010011001…
…1010111011110001101
3111210021122222012002101
42012110303113132031
54330340441223341
6150131502155101
713264110202315
oct2062463273615
9453248865071
10144230414221
1156193343a43
1223b52582a91
13107a715938a
146da3400445
153b4230c831
hex2194cd778d

144230414221 has 32 divisors (see below), whose sum is σ = 157710623616. Its totient is φ = 131362560000.

The previous prime is 144230414201. The next prime is 144230414297. The reversal of 144230414221 is 122414032441.

It is a cyclic number.

It is not a de Polignac number, because 144230414221 - 213 = 144230406029 is a prime.

It is a super-2 number, since 2×1442304142212 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144230414221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144230414201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79640406 + ... + 79642216.

It is an arithmetic number, because the mean of its divisors is an integer number (4928456988).

Almost surely, 2144230414221 is an apocalyptic number.

It is an amenable number.

144230414221 is a deficient number, since it is larger than the sum of its proper divisors (13480209395).

144230414221 is a wasteful number, since it uses less digits than its factorization.

144230414221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 144230414221 its reverse (122414032441), we get a palindrome (266644446662).

The spelling of 144230414221 in words is "one hundred forty-four billion, two hundred thirty million, four hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 17 41 163 697 701 1811 2771 6683 11917 28741 30787 74251 113611 114263 295193 488597 1262267 1269511 1942471 4684783 5018281 12102913 21581687 52049951 79641311 205749521 206930293 884849167 3517814981 8484142013 144230414221