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52067831 = 61853571
BaseRepresentation
bin1100011010011…
…1110111110111
310121222022122012
43012213313313
5101312132311
65055554435
71201366154
oct306476767
9117868565
1052067831
1127433372
121552ba1b
13aa3068a
146cb522b
15488778b
hex31a7df7

52067831 has 4 divisors (see below), whose sum is σ = 52921464. Its totient is φ = 51214200.

The previous prime is 52067767. The next prime is 52067833. The reversal of 52067831 is 13876025.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52067831 - 26 = 52067767 is a prime.

It is a super-2 number, since 2×520678312 = 5422118050089122, 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 (52067833) 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, 426725 + ... + 426846.

It is an arithmetic number, because the mean of its divisors is an integer number (13230366).

Almost surely, 252067831 is an apocalyptic number.

52067831 is a deficient number, since it is larger than the sum of its proper divisors (853633).

52067831 is an equidigital number, since it uses as much as digits as its factorization.

52067831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853632.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 52067831 is about 7215.8042517796. The cubic root of 52067831 is about 373.4133400136.

The spelling of 52067831 in words is "fifty-two million, sixty-seven thousand, eight hundred thirty-one".

Divisors: 1 61 853571 52067831