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52020205 = 585312197
BaseRepresentation
bin1100011001110…
…0001111101101
310121212220022021
43012130033231
5101304121310
65054550141
71201110256
oct306341755
9117786267
1052020205
1127400606
1215508351
13aa14ab3
146ca1b2d
1548785da
hex319c3ed

52020205 has 8 divisors (see below), whose sum is σ = 62502552. Its totient is φ = 41563968.

The previous prime is 52020203. The next prime is 52020217. The reversal of 52020205 is 50202025.

It can be written as a sum of positive squares in 4 ways, for example, as 1297321 + 50722884 = 1139^2 + 7122^2 .

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 52020205 - 21 = 52020203 is a prime.

It is a super-2 number, since 2×520202052 = 5412203456484050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52020203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 10363.

It is an arithmetic number, because the mean of its divisors is an integer number (7812819).

Almost surely, 252020205 is an apocalyptic number.

It is an amenable number.

52020205 is a deficient number, since it is larger than the sum of its proper divisors (10482347).

52020205 is a wasteful number, since it uses less digits than its factorization.

52020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13055.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 52020205 is about 7212.5033795486. The cubic root of 52020205 is about 373.2994526191.

It can be divided in two parts, 5202020 and 5, that added together give a palindrome (5202025).

The spelling of 52020205 in words is "fifty-two million, twenty thousand, two hundred five".

Divisors: 1 5 853 4265 12197 60985 10404041 52020205