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144315254132 = 227217215320117
BaseRepresentation
bin1000011001100111011…
…1000000010101110100
3111210111120121111120022
42012121313000111310
54331024201113012
6150144132424312
713266160264100
oct2063167002564
9453446544508
10144315254132
1156227220475
1223b76a78098
13107bb8c26ca
146db07a6900
153b499ba472
hex2199dc0574

144315254132 has 72 divisors (see below), whose sum is σ = 311226023304. Its totient is φ = 58181265408.

The previous prime is 144315254131. The next prime is 144315254173. The reversal of 144315254132 is 231452513441.

It can be written as a sum of positive squares in 4 ways, for example, as 2392775056 + 141922479076 = 48916^2 + 376726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144315254092 and 144315254101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144315254131) 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 23 ways as a sum of consecutive naturals, for example, 7163738 + ... + 7183854.

It is an arithmetic number, because the mean of its divisors is an integer number (4322583657).

Almost surely, 2144315254132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144315254132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155613011652).

144315254132 is an abundant number, since it is smaller than the sum of its proper divisors (166910769172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144315254132 is a wasteful number, since it uses less digits than its factorization.

144315254132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22305 (or 22296 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

Adding to 144315254132 its reverse (231452513441), we get a palindrome (375767767573).

The spelling of 144315254132 in words is "one hundred forty-four billion, three hundred fifteen million, two hundred fifty-four thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 17 28 34 49 68 98 119 196 238 476 833 1666 2153 3332 4306 8612 15071 20117 30142 36601 40234 60284 73202 80468 105497 140819 146404 210994 256207 281638 341989 421988 512414 563276 683978 985733 1024828 1367956 1793449 1971466 2393923 3586898 3942932 4787846 7173796 9575692 16757461 33514922 43311901 67029844 86623802 173247604 303183307 606366614 736302317 1212733228 1472604634 2122283149 2945209268 4244566298 5154116219 8489132596 10308232438 20616464876 36078813533 72157627066 144315254132