Search a number
-
+
121213041 = 359967453
BaseRepresentation
bin1110011100110…
…01000001110001
322110002021000220
413032121001301
5222012304131
620010003253
73001202535
oct716310161
9273067026
10121213041
1162470174
1234716529
131c1600c1
1412153bc5
15a994e96
hex7399071

121213041 has 8 divisors (see below), whose sum is σ = 161889600. Its totient is φ = 80672592.

The previous prime is 121213031. The next prime is 121213049. The reversal of 121213041 is 140312121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121213041 - 29 = 121212529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121213041.

It is not an unprimeable number, because it can be changed into a prime (121213049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31930 + ... + 35523.

It is an arithmetic number, because the mean of its divisors is an integer number (20236200).

Almost surely, 2121213041 is an apocalyptic number.

It is an amenable number.

121213041 is a deficient number, since it is larger than the sum of its proper divisors (40676559).

121213041 is an equidigital number, since it uses as much as digits as its factorization.

121213041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68055.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 121213041 is about 11009.6794231258. The cubic root of 121213041 is about 494.8988549590.

Adding to 121213041 its reverse (140312121), we get a palindrome (261525162).

The spelling of 121213041 in words is "one hundred twenty-one million, two hundred thirteen thousand, forty-one".

Divisors: 1 3 599 1797 67453 202359 40404347 121213041