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144736876249 = 721722321392
BaseRepresentation
bin1000011011001011111…
…1010111011011011001
3111211120221222010101021
42012302333113123121
54332410120014444
6150254033322441
713312500102100
oct2066277273331
9454527863337
10144736876249
11564232143a9
1224074106421
1310858064854
147010799037
153b71a00584
hex21b2fd76d9

144736876249 has 81 divisors (see below), whose sum is σ = 188323065567. Its totient is φ = 110882395008.

The previous prime is 144736876247. The next prime is 144736876313. The reversal of 144736876249 is 942678637441.

The square root of 144736876249 is 380443.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 112684419225 + 32052457024 = 335685^2 + 179032^2 .

It is not a de Polignac number, because 144736876249 - 21 = 144736876247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144736876247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1041272422 + ... + 1041272560.

Almost surely, 2144736876249 is an apocalyptic number.

144736876249 is the 380443-rd square number.

144736876249 is the 190222-nd centered octagonal number.

It is an amenable number.

144736876249 is a deficient number, since it is larger than the sum of its proper divisors (43586189318).

144736876249 is an equidigital number, since it uses as much as digits as its factorization.

144736876249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 186 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 61.

The spelling of 144736876249 in words is "one hundred forty-four billion, seven hundred thirty-six million, eight hundred seventy-six thousand, two hundred forty-nine".

Divisors: 1 7 17 23 49 119 139 161 289 391 529 833 973 1127 2023 2363 2737 3197 3703 6647 6811 8993 14161 16541 19159 19321 22379 25921 40171 46529 54349 62951 73531 115787 135247 152881 156653 281197 325703 328457 380443 440657 444383 514717 923933 946729 1070167 1250027 1968379 2299199 2663101 3110681 3603019 5583769 6467531 7491169 7554511 8750189 10220809 16094393 21250459 21774767 39086383 45272717 52881577 61251323 71545663 128426687 148753213 173753753 273604681 370171039 500819641 898986809 1041272491 1216276271 2953813801 6292907663 8513933897 20676696607 144736876249