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52127257 = 713572827
BaseRepresentation
bin1100011011011…
…0011000011001
310122002100011011
43012312120121
5101321033012
65101133521
71202034340
oct306663031
9118070134
1052127257
1127473a86
121555a2a1
13aa51740
146cccb57
15489a1a7
hex31b6619

52127257 has 8 divisors (see below), whose sum is σ = 64156736. Its totient is φ = 41243472.

The previous prime is 52127227. The next prime is 52127261. The reversal of 52127257 is 75272125.

52127257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52127257 - 223 = 43738649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52127227) 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 7 ways as a sum of consecutive naturals, for example, 286323 + ... + 286504.

It is an arithmetic number, because the mean of its divisors is an integer number (8019592).

Almost surely, 252127257 is an apocalyptic number.

It is an amenable number.

52127257 is a deficient number, since it is larger than the sum of its proper divisors (12029479).

52127257 is a wasteful number, since it uses less digits than its factorization.

52127257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572847.

The product of its digits is 9800, while the sum is 31.

The square root of 52127257 is about 7219.9208444414. The cubic root of 52127257 is about 373.5553472373. Note that the first 3 decimals are identical.

The spelling of 52127257 in words is "fifty-two million, one hundred twenty-seven thousand, two hundred fifty-seven".

Divisors: 1 7 13 91 572827 4009789 7446751 52127257