Search a number
-
+
68607269 is a prime number
BaseRepresentation
bin1000001011011…
…01110100100101
311210002121110222
410011231310211
5120030413034
610450254125
71462103123
oct405556445
9153077428
1068607269
11357aa725
121ab87345
13112a1923
14917c913
15605312e
hex416dd25

68607269 has 2 divisors, whose sum is σ = 68607270. Its totient is φ = 68607268.

The previous prime is 68607241. The next prime is 68607293. The reversal of 68607269 is 96270686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68392900 + 214369 = 8270^2 + 463^2 .

It is a cyclic number.

It is not a de Polignac number, because 68607269 - 28 = 68607013 is a prime.

It is a super-2 number, since 2×686072692 = 9413914719276722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68607239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34303634 + 34303635.

It is an arithmetic number, because the mean of its divisors is an integer number (34303635).

Almost surely, 268607269 is an apocalyptic number.

It is an amenable number.

68607269 is a deficient number, since it is larger than the sum of its proper divisors (1).

68607269 is an equidigital number, since it uses as much as digits as its factorization.

68607269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 68607269 is about 8282.9505008783. The cubic root of 68607269 is about 409.3769418085.

The spelling of 68607269 in words is "sixty-eight million, six hundred seven thousand, two hundred sixty-nine".