Search a number
-
+
52007020 = 22513317631
BaseRepresentation
bin1100011001100…
…1000001101100
310121212020012221
43012121001230
5101303211040
65054405124
71201023652
oct306310154
9117766187
1052007020
11273a170a
12155007a4
13aa0bab0
146c9add2
15487474a
hex319906c

52007020 has 48 divisors (see below), whose sum is σ = 118173888. Its totient is φ = 19111680.

The previous prime is 52006993. The next prime is 52007023. The reversal of 52007020 is 2070025.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 52006985 and 52007003.

It is not an unprimeable number, because it can be changed into a prime (52007023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82105 + ... + 82735.

It is an arithmetic number, because the mean of its divisors is an integer number (2461956).

Almost surely, 252007020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52007020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59086944).

52007020 is an abundant number, since it is smaller than the sum of its proper divisors (66166868).

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

52007020 is a wasteful number, since it uses less digits than its factorization.

52007020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 52007020 is about 7211.5892839235. The cubic root of 52007020 is about 373.2679112262.

Adding to 52007020 its reverse (2070025), we get a palindrome (54077045).

The spelling of 52007020 in words is "fifty-two million, seven thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 317 631 634 1262 1268 1585 2524 3155 3170 4121 6310 6340 8203 8242 12620 16406 16484 20605 32812 41015 41210 82030 82420 164060 200027 400054 800108 1000135 2000270 2600351 4000540 5200702 10401404 13001755 26003510 52007020