Search a number
-
+
68893713 = 3371033539
BaseRepresentation
bin1000001101100…
…11110000010001
311210122011102000
410012303300101
5120114044323
610500344213
71464405210
oct406636021
9153564360
1068893713
1135985959
121b0a5069
1311372115
149215077
1560ace43
hex41b3c11

68893713 has 32 divisors (see below), whose sum is σ = 117811200. Its totient is φ = 38974608.

The previous prime is 68893709. The next prime is 68893723. The reversal of 68893713 is 31739886.

It is a happy number.

It is not a de Polignac number, because 68893713 - 22 = 68893709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68893723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17698 + ... + 21236.

It is an arithmetic number, because the mean of its divisors is an integer number (3681600).

Almost surely, 268893713 is an apocalyptic number.

68893713 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68893713 is a deficient number, since it is larger than the sum of its proper divisors (48917487).

68893713 is a wasteful number, since it uses less digits than its factorization.

68893713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658 (or 3652 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 68893713 is about 8300.2236716850. The cubic root of 68893713 is about 409.9458841921.

The spelling of 68893713 in words is "sixty-eight million, eight hundred ninety-three thousand, seven hundred thirteen".

Divisors: 1 3 7 9 21 27 63 103 189 309 721 927 2163 2781 3539 6489 10617 19467 24773 31851 74319 95553 222957 364517 668871 1093551 2551619 3280653 7654857 9841959 22964571 68893713