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52007869 = 143336293
BaseRepresentation
bin1100011001100…
…1001110111101
310121212021101101
43012121032331
5101303222434
65054413101
71201026304
oct306311675
9117767341
1052007869
11273a2311
1215501191
13aa0c2b4
146c9b43b
154874b14
hex31993bd

52007869 has 4 divisors (see below), whose sum is σ = 52045596. Its totient is φ = 51970144.

The previous prime is 52007849. The next prime is 52007909. The reversal of 52007869 is 96870025.

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 17960644 + 34047225 = 4238^2 + 5835^2 .

It is a cyclic number.

It is not a de Polignac number, because 52007869 - 27 = 52007741 is a prime.

It is a super-2 number, since 2×520078692 = 5409636875842322, 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 (52007819) 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, 16714 + ... + 19579.

It is an arithmetic number, because the mean of its divisors is an integer number (13011399).

Almost surely, 252007869 is an apocalyptic number.

It is an amenable number.

52007869 is a deficient number, since it is larger than the sum of its proper divisors (37727).

52007869 is a wasteful number, since it uses less digits than its factorization.

52007869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37726.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 52007869 is about 7211.6481472684. The cubic root of 52007869 is about 373.2699423797.

The spelling of 52007869 in words is "fifty-two million, seven thousand, eight hundred sixty-nine".

Divisors: 1 1433 36293 52007869