Search a number
-
+
68069675501 is a prime number
BaseRepresentation
bin111111011001010001…
…001101000111101101
320111200220002210110122
4333121101031013231
52103401314104001
651134253214325
74626554460302
oct773121150755
9214626083418
1068069675501
1126960614773
12112384913a5
13655a5571c9
14341a4d70a9
151b85e12b1b
hexfd944d1ed

68069675501 has 2 divisors, whose sum is σ = 68069675502. Its totient is φ = 68069675500.

The previous prime is 68069675489. The next prime is 68069675521. The reversal of 68069675501 is 10557696086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50041242601 + 18028432900 = 223699^2 + 134270^2 .

It is a cyclic number.

It is not a de Polignac number, because 68069675501 - 214 = 68069659117 is a prime.

It is a super-2 number, since 2×680696755012 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68069675521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34034837750 + 34034837751.

It is an arithmetic number, because the mean of its divisors is an integer number (34034837751).

Almost surely, 268069675501 is an apocalyptic number.

It is an amenable number.

68069675501 is a deficient number, since it is larger than the sum of its proper divisors (1).

68069675501 is an equidigital number, since it uses as much as digits as its factorization.

68069675501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 68069675501 in words is "sixty-eight billion, sixty-nine million, six hundred seventy-five thousand, five hundred one".