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52212230 = 2573532113
BaseRepresentation
bin1100011100101…
…1001000000110
310122020122201022
43013023020012
5101331242410
65103031142
71202540150
oct307131006
9118218638
1052212230
1127521904
121559b4b2
13aa81315
146d11ad0
1548b5455
hex31cb206

52212230 has 32 divisors (see below), whose sum is σ = 107763264. Its totient is φ = 17842176.

The previous prime is 52212221. The next prime is 52212233. The reversal of 52212230 is 3221225.

It is a super-2 number, since 2×522122302 = 5452233923145800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52212199 and 52212208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23654 + ... + 25766.

It is an arithmetic number, because the mean of its divisors is an integer number (3367602).

Almost surely, 252212230 is an apocalyptic number.

52212230 is an abundant number, since it is smaller than the sum of its proper divisors (55551034).

52212230 is a wasteful number, since it uses less digits than its factorization.

52212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 52212230 is about 7225.8030695557. The cubic root of 52212230 is about 373.7582154248.

Adding to 52212230 its reverse (3221225), we get a palindrome (55433455).

The spelling of 52212230 in words is "fifty-two million, two hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 353 706 1765 2113 2471 3530 4226 4942 10565 12355 14791 21130 24710 29582 73955 147910 745889 1491778 3729445 5221223 7458890 10442446 26106115 52212230