Search a number
-
+
121024031 = 313904001
BaseRepresentation
bin1110011011010…
…10111000011111
322102201122202112
413031222320133
5221440232111
620001544235
72666454512
oct715527037
9272648675
10121024031
1162351167
123464507b
131c0c506b
1412104d79
15a958e8b
hex736ae1f

121024031 has 4 divisors (see below), whose sum is σ = 124928064. Its totient is φ = 117120000.

The previous prime is 121024027. The next prime is 121024049. The reversal of 121024031 is 130420121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121024031 - 22 = 121024027 is a prime.

It is a super-2 number, since 2×1210240312 = 29293632158977922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121023997 and 121024015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121024051) 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 3 ways as a sum of consecutive naturals, for example, 1951970 + ... + 1952031.

It is an arithmetic number, because the mean of its divisors is an integer number (31232016).

Almost surely, 2121024031 is an apocalyptic number.

121024031 is a deficient number, since it is larger than the sum of its proper divisors (3904033).

121024031 is an equidigital number, since it uses as much as digits as its factorization.

121024031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904032.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121024031 is about 11001.0922639527. The cubic root of 121024031 is about 494.6414858013.

Adding to 121024031 its reverse (130420121), we get a palindrome (251444152).

The spelling of 121024031 in words is "one hundred twenty-one million, twenty-four thousand, thirty-one".

Divisors: 1 31 3904001 121024031