Search a number
-
+
52020537 = 3191575813
BaseRepresentation
bin1100011001110…
…0010100111001
310121212220202120
43012130110321
5101304124122
65054551453
71201111242
oct306342471
9117786676
1052020537
1127400888
1215508589
13aa14caa
146ca1cc9
15487875c
hex319c539

52020537 has 16 divisors (see below), whose sum is σ = 73488960. Its totient is φ = 32640192.

The previous prime is 52020491. The next prime is 52020539. The reversal of 52020537 is 73502025.

52020537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52020537 - 28 = 52020281 is a prime.

It is a super-2 number, since 2×520205372 = 5412272539536738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52020539) 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 15 ways as a sum of consecutive naturals, for example, 6043 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (4593060).

Almost surely, 252020537 is an apocalyptic number.

52020537 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

52020537 is a deficient number, since it is larger than the sum of its proper divisors (21468423).

52020537 is a wasteful number, since it uses less digits than its factorization.

52020537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 52020537 is about 7212.5263950990. The cubic root of 52020537 is about 373.3002467666.

The spelling of 52020537 in words is "fifty-two million, twenty thousand, five hundred thirty-seven".

Divisors: 1 3 19 57 157 471 2983 5813 8949 17439 110447 331341 912641 2737923 17340179 52020537