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52069145 = 527073847
BaseRepresentation
bin1100011010100…
…0001100011001
310121222101102212
43012220030121
5101312203040
65100004505
71201403042
oct306501431
9117871385
1052069145
1127434357
1215530735
13aa3115b
146cb58c9
154887d65
hex31a8319

52069145 has 8 divisors (see below), whose sum is σ = 62522304. Its totient is φ = 41629104.

The previous prime is 52069133. The next prime is 52069151. The reversal of 52069145 is 54196025.

It is a happy number.

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 52069145 - 26 = 52069081 is a prime.

It is a super-2 number, since 2×520691452 = 5422391722062050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11612 + ... + 15458.

It is an arithmetic number, because the mean of its divisors is an integer number (7815288).

Almost surely, 252069145 is an apocalyptic number.

It is an amenable number.

52069145 is a deficient number, since it is larger than the sum of its proper divisors (10453159).

52069145 is a wasteful number, since it uses less digits than its factorization.

52069145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 52069145 is about 7215.8953013469. The cubic root of 52069145 is about 373.4164811790.

The spelling of 52069145 in words is "fifty-two million, sixty-nine thousand, one hundred forty-five".

Divisors: 1 5 2707 3847 13535 19235 10413829 52069145