Search a number
-
+
68280335 = 533141257
BaseRepresentation
bin1000001000111…
…10000000001111
311202111000000022
410010132000033
5114434432320
610435252355
71456242014
oct404360017
9152430008
1068280335
11355a7032
121aa4a0bb
13111b8b86
1490d570b
155edb325
hex411e00f

68280335 has 8 divisors (see below), whose sum is σ = 82185936. Its totient is φ = 54457920.

The previous prime is 68280299. The next prime is 68280341. The reversal of 68280335 is 53308286.

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

It is not a de Polignac number, because 68280335 - 224 = 51503119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68280295 and 68280304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18974 + ... + 22283.

It is an arithmetic number, because the mean of its divisors is an integer number (10273242).

Almost surely, 268280335 is an apocalyptic number.

68280335 is a deficient number, since it is larger than the sum of its proper divisors (13905601).

68280335 is a wasteful number, since it uses less digits than its factorization.

68280335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41593.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 68280335 is about 8263.1915746883. The cubic root of 68280335 is about 408.7256386146.

The spelling of 68280335 in words is "sixty-eight million, two hundred eighty thousand, three hundred thirty-five".

Divisors: 1 5 331 1655 41257 206285 13656067 68280335