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51041101 = 251203351
BaseRepresentation
bin1100001010110…
…1001101001101
310120001011020011
43002231031031
5101031303401
65021553221
71156561606
oct302551515
9116034204
1051041101
11268a1a31
1215115811
13a761247
146ac8dad
154733451
hex30ad34d

51041101 has 4 divisors (see below), whose sum is σ = 51244704. Its totient is φ = 50837500.

The previous prime is 51041063. The next prime is 51041113. The reversal of 51041101 is 10114015.

51041101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10114015 = 52022803.

It is a cyclic number.

It is not a de Polignac number, because 51041101 - 29 = 51040589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51041141) 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 3 ways as a sum of consecutive naturals, for example, 101425 + ... + 101926.

It is an arithmetic number, because the mean of its divisors is an integer number (12811176).

Almost surely, 251041101 is an apocalyptic number.

It is an amenable number.

51041101 is a deficient number, since it is larger than the sum of its proper divisors (203603).

51041101 is a wasteful number, since it uses less digits than its factorization.

51041101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203602.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 51041101 is about 7144.3054945880. The cubic root of 51041101 is about 370.9425712044.

Adding to 51041101 its reverse (10114015), we get a palindrome (61155116).

The spelling of 51041101 in words is "fifty-one million, forty-one thousand, one hundred one".

Divisors: 1 251 203351 51041101