Search a number
-
+
68262131 = 766114753
BaseRepresentation
bin1000001000110…
…01100011110011
311202110002001002
410010121203303
5114433342011
610435032215
71456134650
oct404314363
9152402032
1068262131
1135594393
121aa3b66b
13111b07c2
1490ccc27
155ed5c3b
hex41198f3

68262131 has 8 divisors (see below), whose sum is σ = 78137184. Its totient is φ = 58417920.

The previous prime is 68262121. The next prime is 68262133. The reversal of 68262131 is 13126286.

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 68262131 - 26 = 68262067 is a prime.

It is a super-2 number, since 2×682621312 = 9319437057322322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68262094 and 68262103.

It is not an unprimeable number, because it can be changed into a prime (68262133) 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, 2750 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (9767148).

Almost surely, 268262131 is an apocalyptic number.

68262131 is a deficient number, since it is larger than the sum of its proper divisors (9875053).

68262131 is a wasteful number, since it uses less digits than its factorization.

68262131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15421.

The product of its digits is 3456, while the sum is 29.

The square root of 68262131 is about 8262.0899898270. The cubic root of 68262131 is about 408.6893123778.

The spelling of 68262131 in words is "sixty-eight million, two hundred sixty-two thousand, one hundred thirty-one".

Divisors: 1 7 661 4627 14753 103271 9751733 68262131