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52032020 = 2252601601
BaseRepresentation
bin1100011001111…
…1001000010100
310121220111111212
43012133020110
5101310011040
65055120552
71201156565
oct306371024
9117814455
1052032020
1127409477
1215513158
13aa1a2a1
146ca616c
15487bd65
hex319f214

52032020 has 12 divisors (see below), whose sum is σ = 109267284. Its totient is φ = 20812800.

The previous prime is 52032017. The next prime is 52032037. The reversal of 52032020 is 2023025.

It can be written as a sum of positive squares in 2 ways, for example, as 15984004 + 36048016 = 3998^2 + 6004^2 .

It is a super-2 number, since 2×520320202 = 5414662210560800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52031986 and 52032004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300781 + ... + 1300820.

It is an arithmetic number, because the mean of its divisors is an integer number (9105607).

Almost surely, 252032020 is an apocalyptic number.

It is an amenable number.

52032020 is an abundant number, since it is smaller than the sum of its proper divisors (57235264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52032020 is a wasteful number, since it uses less digits than its factorization.

52032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601610 (or 2601608 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 52032020 is about 7213.3223967878. The cubic root of 52032020 is about 373.3277121461.

Adding to 52032020 its reverse (2023025), we get a palindrome (54055045).

The spelling of 52032020 in words is "fifty-two million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 2601601 5203202 10406404 13008005 26016010 52032020