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52217230 = 2513401671
BaseRepresentation
bin1100011100110…
…0010110001110
310122020220120111
43013030112032
5101331422410
65103110234
71202560552
oct307142616
9118226514
1052217230
112752563a
12155a237a
13aa83690
146d13862
1548b6b8a
hex31cc58e

52217230 has 16 divisors (see below), whose sum is σ = 101221344. Its totient is φ = 19280160.

The previous prime is 52217219. The next prime is 52217239. The reversal of 52217230 is 3271225.

52217230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52217239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200706 + ... + 200965.

It is an arithmetic number, because the mean of its divisors is an integer number (6326334).

Almost surely, 252217230 is an apocalyptic number.

52217230 is a deficient number, since it is larger than the sum of its proper divisors (49004114).

52217230 is a wasteful number, since it uses less digits than its factorization.

52217230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401691.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 52217230 is about 7226.1490435778. The cubic root of 52217230 is about 373.7701457805.

Adding to 52217230 its reverse (3271225), we get a palindrome (55488455).

The spelling of 52217230 in words is "fifty-two million, two hundred seventeen thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 401671 803342 2008355 4016710 5221723 10443446 26108615 52217230