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52144413 = 317381471
BaseRepresentation
bin1100011011101…
…0100100011101
310122010012200120
43012322210131
5101322110123
65101345153
71202135346
oct306724435
9118105616
1052144413
1127485962
12155681b9
13aa594a9
146cd50cd
1548a02e3
hex31ba91d

52144413 has 4 divisors (see below), whose sum is σ = 69525888. Its totient is φ = 34762940.

The previous prime is 52144403. The next prime is 52144441. The reversal of 52144413 is 31444125.

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 52144413 - 29 = 52143901 is a prime.

It is a super-2 number, since 2×521444132 = 5438079614229138, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8690733 + ... + 8690738.

It is an arithmetic number, because the mean of its divisors is an integer number (17381472).

Almost surely, 252144413 is an apocalyptic number.

It is an amenable number.

52144413 is a deficient number, since it is larger than the sum of its proper divisors (17381475).

52144413 is a wasteful number, since it uses less digits than its factorization.

52144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17381474.

The product of its digits is 1920, while the sum is 24.

The square root of 52144413 is about 7221.1088483695. The cubic root of 52144413 is about 373.5963239608.

Adding to 52144413 its reverse (31444125), we get a palindrome (83588538).

The spelling of 52144413 in words is "fifty-two million, one hundred forty-four thousand, four hundred thirteen".

Divisors: 1 3 17381471 52144413