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68516862 = 2323496499
BaseRepresentation
bin1000001010101…
…11101111111110
311202221000110120
410011113233332
5120020014422
610444315410
71461245421
oct405275776
9152830416
1068516862
1135748807
121ab42b66
131126c72b
1491579b8
15603645c
hex4157bfe

68516862 has 16 divisors (see below), whose sum is σ = 142992000. Its totient is φ = 21845912.

The previous prime is 68516837. The next prime is 68516867. The reversal of 68516862 is 26861586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68516867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248112 + ... + 248387.

It is an arithmetic number, because the mean of its divisors is an integer number (8937000).

Almost surely, 268516862 is an apocalyptic number.

68516862 is an abundant number, since it is smaller than the sum of its proper divisors (74475138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68516862 is a wasteful number, since it uses less digits than its factorization.

68516862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496527.

The product of its digits is 138240, while the sum is 42.

The square root of 68516862 is about 8277.4912866158. The cubic root of 68516862 is about 409.1970443988.

It can be divided in two parts, 68516 and 862, that added together give a triangular number (69378 = T372).

The spelling of 68516862 in words is "sixty-eight million, five hundred sixteen thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 23 46 69 138 496499 992998 1489497 2978994 11419477 22838954 34258431 68516862