Search a number
-
+
68714497349 = 371857148577
BaseRepresentation
bin111111111111101101…
…000000010101000101
320120100211110010202022
4333333231000111011
52111211402403344
651322250052525
74651544406341
oct777755002505
9216324403668
1068714497349
11271615a6993
121139841a145
1366310172b4
14347bdca621
151bc28360ee
hexfffb40545

68714497349 has 4 divisors (see below), whose sum is σ = 70571645964. Its totient is φ = 66857348736.

The previous prime is 68714497337. The next prime is 68714497351. The reversal of 68714497349 is 94379441786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63810296449 + 4904200900 = 252607^2 + 70030^2 .

It is a cyclic number.

It is not a de Polignac number, because 68714497349 - 216 = 68714431813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68714497291 and 68714497300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68714497949) 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, 928574252 + ... + 928574325.

It is an arithmetic number, because the mean of its divisors is an integer number (17642911491).

Almost surely, 268714497349 is an apocalyptic number.

It is an amenable number.

68714497349 is a deficient number, since it is larger than the sum of its proper divisors (1857148615).

68714497349 is a wasteful number, since it uses less digits than its factorization.

68714497349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857148614.

The product of its digits is 36578304, while the sum is 62.

The spelling of 68714497349 in words is "sixty-eight billion, seven hundred fourteen million, four hundred ninety-seven thousand, three hundred forty-nine".

Divisors: 1 37 1857148577 68714497349