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68753503 = 713977789
BaseRepresentation
bin1000001100100…
…01100001011111
311210101001002001
410012101201133
5120100103003
610453343131
71463252350
oct406214137
9153331061
1068753503
113589a585
121b037aa7
1311323360
1491b9d27
15608161d
hex419185f

68753503 has 16 divisors (see below), whose sum is σ = 85503040. Its totient is φ = 53830656.

The previous prime is 68753497. The next prime is 68753507. The reversal of 68753503 is 30535786.

It is a cyclic number.

It is not a de Polignac number, because 68753503 - 29 = 68752991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68753507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4933 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (5343940).

Almost surely, 268753503 is an apocalyptic number.

68753503 is a deficient number, since it is larger than the sum of its proper divisors (16749537).

68753503 is a wasteful number, since it uses less digits than its factorization.

68753503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 68753503 is about 8291.7732120458. The cubic root of 68753503 is about 409.6675929577.

It can be divided in two parts, 68 and 753503, that added together give a cube (753571 = 913).

The spelling of 68753503 in words is "sixty-eight million, seven hundred fifty-three thousand, five hundred three".

Divisors: 1 7 13 91 97 679 1261 7789 8827 54523 101257 708799 755533 5288731 9821929 68753503