Search a number
-
+
6768087321 = 32256029107
BaseRepresentation
bin1100100110110100…
…01101000100011001
3122110200100110101210
412103122031010121
5102330112243241
63035331333333
7326501536002
oct62332150431
918420313353
106768087321
1129634551a6
12138a751249
1383b2571c8
14482c2c1a9
152992a9316
hex19368d119

6768087321 has 4 divisors (see below), whose sum is σ = 9024116432. Its totient is φ = 4512058212.

The previous prime is 6768087301. The next prime is 6768087329. The reversal of 6768087321 is 1237808676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6768087321 - 217 = 6767956249 is a prime.

It is a super-3 number, since 3×67680873213 (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6768087329) 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, 1128014551 + ... + 1128014556.

It is an arithmetic number, because the mean of its divisors is an integer number (2256029108).

Almost surely, 26768087321 is an apocalyptic number.

It is an amenable number.

6768087321 is a deficient number, since it is larger than the sum of its proper divisors (2256029111).

6768087321 is a wasteful number, since it uses less digits than its factorization.

6768087321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256029110.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 6768087321 is about 82268.3859146392. The cubic root of 6768087321 is about 1891.5681135026.

The spelling of 6768087321 in words is "six billion, seven hundred sixty-eight million, eighty-seven thousand, three hundred twenty-one".

Divisors: 1 3 2256029107 6768087321