Search a number
-
+
68115417 = 322705139
BaseRepresentation
bin1000000111101…
…01101111011001
311202011121210020
410003311233121
5114414143132
610431541053
71454654136
oct403655731
9152147706
1068115417
11354a4137
121a98a789
131115baa6
14909158d
155ea752c
hex40f5bd9

68115417 has 4 divisors (see below), whose sum is σ = 90820560. Its totient is φ = 45410276.

The previous prime is 68115371. The next prime is 68115419. The reversal of 68115417 is 71451186.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68115417 - 26 = 68115353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68115419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11352567 + ... + 11352572.

It is an arithmetic number, because the mean of its divisors is an integer number (22705140).

Almost surely, 268115417 is an apocalyptic number.

It is an amenable number.

68115417 is a deficient number, since it is larger than the sum of its proper divisors (22705143).

68115417 is a wasteful number, since it uses less digits than its factorization.

68115417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22705142.

The product of its digits is 6720, while the sum is 33.

The square root of 68115417 is about 8253.2064677918. The cubic root of 68115417 is about 408.3963073036.

The spelling of 68115417 in words is "sixty-eight million, one hundred fifteen thousand, four hundred seventeen".

Divisors: 1 3 22705139 68115417