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52163873 = 192745467
BaseRepresentation
bin1100011011111…
…1010100100001
310122011012101022
43012333110201
5101323220443
65102015225
71202246156
oct306772441
9118135338
1052163873
1127499543
1215577515
13aa652c8
146cdc22d
1548a5e68
hex31bf521

52163873 has 4 divisors (see below), whose sum is σ = 54909360. Its totient is φ = 49418388.

The previous prime is 52163833. The next prime is 52163897. The reversal of 52163873 is 37836125.

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 not a de Polignac number, because 52163873 - 210 = 52162849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52163833) 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, 1372715 + ... + 1372752.

It is an arithmetic number, because the mean of its divisors is an integer number (13727340).

Almost surely, 252163873 is an apocalyptic number.

It is an amenable number.

52163873 is a deficient number, since it is larger than the sum of its proper divisors (2745487).

52163873 is a wasteful number, since it uses less digits than its factorization.

52163873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745486.

The product of its digits is 30240, while the sum is 35.

The square root of 52163873 is about 7222.4561611684. The cubic root of 52163873 is about 373.6427928589.

Adding to 52163873 its reverse (37836125), we get a palindrome (89999998).

The spelling of 52163873 in words is "fifty-two million, one hundred sixty-three thousand, eight hundred seventy-three".

Divisors: 1 19 2745467 52163873