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52386161 = 67781883
BaseRepresentation
bin1100011111010…
…1100101110001
310122120111022012
43013311211301
5101402324121
65110452305
71204163222
oct307654561
9118514265
1052386161
1127630553
1215664095
13ab12539
146d59249
1548ebc5b
hex31f5971

52386161 has 4 divisors (see below), whose sum is σ = 53168112. Its totient is φ = 51604212.

The previous prime is 52386149. The next prime is 52386167. The reversal of 52386161 is 16168325.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52386161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52386167) 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, 390875 + ... + 391008.

It is an arithmetic number, because the mean of its divisors is an integer number (13292028).

Almost surely, 252386161 is an apocalyptic number.

It is an amenable number.

52386161 is a deficient number, since it is larger than the sum of its proper divisors (781951).

52386161 is an equidigital number, since it uses as much as digits as its factorization.

52386161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781950.

The product of its digits is 8640, while the sum is 32.

The square root of 52386161 is about 7237.8284726843. The cubic root of 52386161 is about 374.1727804143.

The spelling of 52386161 in words is "fifty-two million, three hundred eighty-six thousand, one hundred sixty-one".

Divisors: 1 67 781883 52386161