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51144053 = 130339251
BaseRepresentation
bin1100001100011…
…0010101110101
310120020101110012
43003012111311
5101043102203
65024110005
71160501012
oct303062565
9116211405
1051144053
1126962314
1215165305
13a79906c
146b14709
154753bd8
hex30c6575

51144053 has 4 divisors (see below), whose sum is σ = 51184608. Its totient is φ = 51103500.

The previous prime is 51144013. The next prime is 51144061. The reversal of 51144053 is 35044115.

51144053 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.

It is a cyclic number.

It is not a de Polignac number, because 51144053 - 28 = 51143797 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 (51144013) 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, 18323 + ... + 20928.

It is an arithmetic number, because the mean of its divisors is an integer number (12796152).

Almost surely, 251144053 is an apocalyptic number.

It is an amenable number.

51144053 is a deficient number, since it is larger than the sum of its proper divisors (40555).

51144053 is a wasteful number, since it uses less digits than its factorization.

51144053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40554.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51144053 is about 7151.5070439733. The cubic root of 51144053 is about 371.1918058482.

Adding to 51144053 its reverse (35044115), we get a palindrome (86188168).

The spelling of 51144053 in words is "fifty-one million, one hundred forty-four thousand, fifty-three".

Divisors: 1 1303 39251 51144053