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52034581 = 66178721
BaseRepresentation
bin1100011001111…
…1110000010101
310121220122000201
43012133300111
5101310101311
65055140501
71201200214
oct306376025
9117818021
1052034581
1127410395
1215514731
13aa1b4c1
146ca707b
15487c9c1
hex319fc15

52034581 has 4 divisors (see below), whose sum is σ = 52113964. Its totient is φ = 51955200.

The previous prime is 52034573. The next prime is 52034611. The reversal of 52034581 is 18543025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36360900 + 15673681 = 6030^2 + 3959^2 .

It is a cyclic number.

It is not a de Polignac number, because 52034581 - 23 = 52034573 is a prime.

It is a super-2 number, since 2×520345812 = 5415195239691122, 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 (52034881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38700 + ... + 40021.

It is an arithmetic number, because the mean of its divisors is an integer number (13028491).

Almost surely, 252034581 is an apocalyptic number.

It is an amenable number.

52034581 is a deficient number, since it is larger than the sum of its proper divisors (79383).

52034581 is an equidigital number, since it uses as much as digits as its factorization.

52034581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79382.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 52034581 is about 7213.4999133569. The cubic root of 52034581 is about 373.3338370706. Note that the first 3 decimals are identical.

The spelling of 52034581 in words is "fifty-two million, thirty-four thousand, five hundred eighty-one".

Divisors: 1 661 78721 52034581