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52310857 = 193188813
BaseRepresentation
bin1100011110001…
…1001101001001
310122102200000011
43013203031021
5101342421412
65105111521
71203430534
oct307431511
9118380004
1052310857
1127589a15
12156285a1
13aab7191
146d39a1b
1548d47a7
hex31e3349

52310857 has 8 divisors (see below), whose sum is σ = 56840960. Its totient is φ = 47958480.

The previous prime is 52310837. The next prime is 52310861. The reversal of 52310857 is 75801325.

52310857 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 a de Polignac number, because none of the positive numbers 2k-52310857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52310807) 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, 43818 + ... + 44995.

It is an arithmetic number, because the mean of its divisors is an integer number (7105120).

Almost surely, 252310857 is an apocalyptic number.

It is an amenable number.

52310857 is a deficient number, since it is larger than the sum of its proper divisors (4530103).

52310857 is a wasteful number, since it uses less digits than its factorization.

52310857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88863.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 52310857 is about 7232.6244890773. The cubic root of 52310857 is about 373.9934059482.

The spelling of 52310857 in words is "fifty-two million, three hundred ten thousand, eight hundred fifty-seven".

Divisors: 1 19 31 589 88813 1687447 2753203 52310857