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52020331 = 1133714033
BaseRepresentation
bin1100011001110…
…0010001101011
310121212220110221
43012130101223
5101304122311
65054550511
71201110526
oct306342153
9117786427
1052020331
1127400710
1215508437
13aa14b7c
146ca1bbd
154878671
hex319c46b

52020331 has 8 divisors (see below), whose sum is σ = 56921904. Its totient is φ = 47147520.

The previous prime is 52020317. The next prime is 52020337. The reversal of 52020331 is 13302025.

52020331 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 52020331 - 25 = 52020299 is a prime.

It is a super-2 number, since 2×520203312 = 5412229674699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52020337) 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, 3310 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (7115238).

Almost surely, 252020331 is an apocalyptic number.

52020331 is a deficient number, since it is larger than the sum of its proper divisors (4901573).

52020331 is a wasteful number, since it uses less digits than its factorization.

52020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14381.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 52020331 is about 7212.5121143746. The cubic root of 52020331 is about 373.2997540128.

Adding to 52020331 its reverse (13302025), we get a palindrome (65322356).

The spelling of 52020331 in words is "fifty-two million, twenty thousand, three hundred thirty-one".

Divisors: 1 11 337 3707 14033 154363 4729121 52020331