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68217202 = 2831313137
BaseRepresentation
bin1000001000011…
…10100101110010
311202100210102001
410010032211302
5114430422302
610434044214
71455556654
oct404164562
9152323361
1068217202
1135563659
121aa1966a
1311196211
1490ba6d4
155ec7787
hex410e972

68217202 has 16 divisors (see below), whose sum is σ = 104382432. Its totient is φ = 33429760.

The previous prime is 68217199. The next prime is 68217217. The reversal of 68217202 is 20271286.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20178 + ... + 23314.

It is an arithmetic number, because the mean of its divisors is an integer number (6523902).

Almost surely, 268217202 is an apocalyptic number.

68217202 is a deficient number, since it is larger than the sum of its proper divisors (36165230).

68217202 is a wasteful number, since it uses less digits than its factorization.

68217202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 68217202 is about 8259.3705571309. The cubic root of 68217202 is about 408.5996285280.

Adding to 68217202 its reverse (20271286), we get a palindrome (88488488).

The spelling of 68217202 in words is "sixty-eight million, two hundred seventeen thousand, two hundred two".

Divisors: 1 2 83 131 166 262 3137 6274 10873 21746 260371 410947 520742 821894 34108601 68217202