Search a number
-
+
68741669 = 973671931
BaseRepresentation
bin1000001100011…
…10101000100101
311210100102211202
410012032220211
5120044213134
610453212245
71463203013
oct406165045
9153312752
1068741669
11358916a7
121b031085
131131ab59
1491b58b3
15607cd7e
hex418ea25

68741669 has 8 divisors (see below), whose sum is σ = 69675648. Its totient is φ = 67812480.

The previous prime is 68741653. The next prime is 68741681. The reversal of 68741669 is 96614786.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68741669 - 24 = 68741653 is a prime.

It is a super-2 number, since 2×687416692 = 9450834113811122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68741269) 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 7 ways as a sum of consecutive naturals, for example, 34634 + ... + 36564.

It is an arithmetic number, because the mean of its divisors is an integer number (8709456).

Almost surely, 268741669 is an apocalyptic number.

It is an amenable number.

68741669 is a deficient number, since it is larger than the sum of its proper divisors (933979).

68741669 is a wasteful number, since it uses less digits than its factorization.

68741669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395.

The product of its digits is 435456, while the sum is 47.

The square root of 68741669 is about 8291.0595824659. The cubic root of 68741669 is about 409.6440873216.

The spelling of 68741669 in words is "sixty-eight million, seven hundred forty-one thousand, six hundred sixty-nine".

Divisors: 1 97 367 1931 35599 187307 708677 68741669