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68263955 = 567203773
BaseRepresentation
bin1000001000110…
…10000000010011
311202110011112122
410010122000103
5114433421310
610435044455
71456143164
oct404320023
9152404478
1068263955
11355957a1
121aa4072b
13111b1596
1490cd76b
155ed6555
hex411a013

68263955 has 8 divisors (see below), whose sum is σ = 83139792. Its totient is φ = 53795808.

The previous prime is 68263913. The next prime is 68263957. The reversal of 68263955 is 55936286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68263955 - 224 = 51486739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68263957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101552 + ... + 102221.

It is an arithmetic number, because the mean of its divisors is an integer number (10392474).

Almost surely, 268263955 is an apocalyptic number.

68263955 is a deficient number, since it is larger than the sum of its proper divisors (14875837).

68263955 is a wasteful number, since it uses less digits than its factorization.

68263955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203845.

The product of its digits is 388800, while the sum is 44.

The square root of 68263955 is about 8262.2003727821. The cubic root of 68263955 is about 408.6929524764.

The spelling of 68263955 in words is "sixty-eight million, two hundred sixty-three thousand, nine hundred fifty-five".

Divisors: 1 5 67 335 203773 1018865 13652791 68263955