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301440141 = 321773137197
BaseRepresentation
bin10001111101111…
…001110010001101
3210000012202010200
4101331321302031
51104132041031
645524524113
710320125142
oct2175716215
9700182120
10301440141
11145178492
1284b50639
134a5b3462
142c06a3c9
151b6e58e6
hex11f79c8d

301440141 has 48 divisors (see below), whose sum is σ = 473142384. Its totient is φ = 184246272.

The previous prime is 301440133. The next prime is 301440143. The reversal of 301440141 is 141044103.

It can be written as a sum of positive squares in 8 ways, for example, as 81540900 + 219899241 = 9030^2 + 14829^2 .

It is not a de Polignac number, because 301440141 - 23 = 301440133 is a prime.

It is a super-3 number, since 3×3014401413 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301440143) 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 47 ways as a sum of consecutive naturals, for example, 1530055 + ... + 1530251.

It is an arithmetic number, because the mean of its divisors is an integer number (9857133).

Almost surely, 2301440141 is an apocalyptic number.

It is an amenable number.

301440141 is a deficient number, since it is larger than the sum of its proper divisors (171702243).

301440141 is a wasteful number, since it uses less digits than its factorization.

301440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 301440141 is about 17362.0315919537. The cubic root of 301440141 is about 670.5024381529.

Adding to 301440141 its reverse (141044103), we get a palindrome (442484244).

The spelling of 301440141 in words is "three hundred one million, four hundred forty thousand, one hundred forty-one".

Divisors: 1 3 9 17 51 73 137 153 197 219 411 591 657 1233 1241 1773 2329 3349 3723 6987 10001 10047 11169 14381 20961 26989 30003 30141 43143 80967 90009 129429 170017 242901 244477 458813 510051 733431 1376439 1530153 1970197 2200293 4129317 5910591 17731773 33493349 100480047 301440141