Search a number
-
+
68708346 = 2371635913
BaseRepresentation
bin1000001100001…
…10011111111010
311210021202010120
410012012133322
5120042131341
610452354110
71463003610
oct406063772
9153252116
1068708346
1135869663
121b015936
1311308935
1491a76b0
156073066
hex41867fa

68708346 has 16 divisors (see below), whose sum is σ = 157047744. Its totient is φ = 19630944.

The previous prime is 68708327. The next prime is 68708347. The reversal of 68708346 is 64380786.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1635913 = 68708346 / (6 + 8 + 7 + 0 + 8 + 3 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 68708298 and 68708307.

It is not an unprimeable number, because it can be changed into a prime (68708347) 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, 817915 + ... + 817998.

It is an arithmetic number, because the mean of its divisors is an integer number (9815484).

Almost surely, 268708346 is an apocalyptic number.

68708346 is an abundant number, since it is smaller than the sum of its proper divisors (88339398).

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

68708346 is a wasteful number, since it uses less digits than its factorization.

68708346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635925.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 68708346 is about 8289.0497645991. The cubic root of 68708346 is about 409.5778840204.

The spelling of 68708346 in words is "sixty-eight million, seven hundred eight thousand, three hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 1635913 3271826 4907739 9815478 11451391 22902782 34354173 68708346