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52212773 = 311684283
BaseRepresentation
bin1100011100101…
…1010000100101
310122020200110102
43013023100211
5101331302043
65103033445
71202541554
oct307132045
9118220412
1052212773
1127522258
121559b885
13aa81642
146d11d9b
1548b56b8
hex31cb425

52212773 has 4 divisors (see below), whose sum is σ = 53897088. Its totient is φ = 50528460.

The previous prime is 52212751. The next prime is 52212781. The reversal of 52212773 is 37721225.

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 52212773 - 216 = 52147237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52212733) 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, 842111 + ... + 842172.

It is an arithmetic number, because the mean of its divisors is an integer number (13474272).

Almost surely, 252212773 is an apocalyptic number.

It is an amenable number.

52212773 is a deficient number, since it is larger than the sum of its proper divisors (1684315).

52212773 is a wasteful number, since it uses less digits than its factorization.

52212773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684314.

The product of its digits is 5880, while the sum is 29.

The square root of 52212773 is about 7225.8406431363. The cubic root of 52212773 is about 373.7595110983.

Adding to 52212773 its reverse (37721225), we get a palindrome (89933998).

The spelling of 52212773 in words is "fifty-two million, two hundred twelve thousand, seven hundred seventy-three".

Divisors: 1 31 1684283 52212773