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52157263 = 4710910181
BaseRepresentation
bin1100011011110…
…1101101001111
310122010212022111
43012331231033
5101323013023
65101524451
71202220664
oct306755517
9118125274
1052157263
1127494584
1215573727
13aa622b2
146cd9a6b
1548a400d
hex31bdb4f

52157263 has 8 divisors (see below), whose sum is σ = 53760960. Its totient is φ = 50574240.

The previous prime is 52157201. The next prime is 52157267. The reversal of 52157263 is 36275125.

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

It is a cyclic number.

It is not a de Polignac number, because 52157263 - 29 = 52156751 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 (52157267) 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 7 ways as a sum of consecutive naturals, for example, 33 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (6720120).

Almost surely, 252157263 is an apocalyptic number.

52157263 is a deficient number, since it is larger than the sum of its proper divisors (1603697).

52157263 is a wasteful number, since it uses less digits than its factorization.

52157263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337.

The product of its digits is 12600, while the sum is 31.

The square root of 52157263 is about 7221.9985461090. The cubic root of 52157263 is about 373.6270100125.

The spelling of 52157263 in words is "fifty-two million, one hundred fifty-seven thousand, two hundred sixty-three".

Divisors: 1 47 109 5123 10181 478507 1109729 52157263