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52052545 = 511299221
BaseRepresentation
bin1100011010010…
…0001001000001
310121221112200001
43012210021001
5101311140140
65055400001
71201303456
oct306441101
9117845601
1052052545
1127422936
1215523001
13aa2672c
146cad82d
154882e9a
hex31a4241

52052545 has 8 divisors (see below), whose sum is σ = 62525160. Its totient is φ = 41600640.

The previous prime is 52052513. The next prime is 52052549. The reversal of 52052545 is 54525025.

It can be written as a sum of positive squares in 4 ways, for example, as 5253264 + 46799281 = 2292^2 + 6841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52052545 - 25 = 52052513 is a prime.

It is a super-3 number, since 3×520525453 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52052549) 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, 1035 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (7815645).

Almost surely, 252052545 is an apocalyptic number.

It is an amenable number.

52052545 is a deficient number, since it is larger than the sum of its proper divisors (10472615).

52052545 is a wasteful number, since it uses less digits than its factorization.

52052545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 52052545 is about 7214.7449712377. The cubic root of 52052545 is about 373.3767943841.

It can be divided in two parts, 5205 and 2545, that added together give a triangular number (7750 = T124).

The spelling of 52052545 in words is "fifty-two million, fifty-two thousand, five hundred forty-five".

Divisors: 1 5 1129 5645 9221 46105 10410509 52052545