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52427223 = 335932911
BaseRepresentation
bin1100011111111…
…1100111010111
310122122120122000
43013333213113
5101410132343
65111410343
71204424022
oct307774727
9118576560
1052427223
1127659392
12156839b3
13ab28134
146d6a1b9
154908ed3
hex31ff9d7

52427223 has 16 divisors (see below), whose sum is σ = 78988800. Its totient is φ = 34358040.

The previous prime is 52427183. The next prime is 52427257. The reversal of 52427223 is 32272425.

It is not a de Polignac number, because 52427223 - 212 = 52423127 is a prime.

It is a super-2 number, since 2×524272232 = 5497227422983458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52427623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14863 + ... + 18048.

It is an arithmetic number, because the mean of its divisors is an integer number (4936800).

Almost surely, 252427223 is an apocalyptic number.

52427223 is a deficient number, since it is larger than the sum of its proper divisors (26561577).

52427223 is a wasteful number, since it uses less digits than its factorization.

52427223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32979 (or 32973 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 52427223 is about 7240.6645413249. The cubic root of 52427223 is about 374.2705178690.

Adding to 52427223 its reverse (32272425), we get a palindrome (84699648).

It can be divided in two parts, 52427 and 223, that added together give a triangular number (52650 = T324).

The spelling of 52427223 in words is "fifty-two million, four hundred twenty-seven thousand, two hundred twenty-three".

Divisors: 1 3 9 27 59 177 531 1593 32911 98733 296199 888597 1941749 5825247 17475741 52427223