Search a number
-
+
129982041 = 32711811747
BaseRepresentation
bin1111011111101…
…01111001011001
3100001120202211200
413233311321121
5231233411131
620521544413
73135554250
oct757657131
9301522750
10129982041
116740a482
1237645109
1320c10567
1413397797
15b6282e6
hex7bf5e59

129982041 has 24 divisors (see below), whose sum is σ = 214878144. Its totient is φ = 74170080.

The previous prime is 129982007. The next prime is 129982057. The reversal of 129982041 is 140289921.

It is not a de Polignac number, because 129982041 - 27 = 129981913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129981987 and 129982005.

It is not an unprimeable number, because it can be changed into a prime (129982001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73530 + ... + 75276.

It is an arithmetic number, because the mean of its divisors is an integer number (8953256).

Almost surely, 2129982041 is an apocalyptic number.

It is an amenable number.

129982041 is a deficient number, since it is larger than the sum of its proper divisors (84896103).

129982041 is a wasteful number, since it uses less digits than its factorization.

129982041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941 (or 2938 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 129982041 is about 11400.9666695417. The cubic root of 129982041 is about 506.5563734900.

The spelling of 129982041 in words is "one hundred twenty-nine million, nine hundred eighty-two thousand, forty-one".

Divisors: 1 3 7 9 21 63 1181 1747 3543 5241 8267 10629 12229 15723 24801 36687 74403 110061 2063207 6189621 14442449 18568863 43327347 129982041