Search a number
-
+
6830141521 = 7975734503
BaseRepresentation
bin1100101110001101…
…11011000001010001
3122122000010010202111
412113012323001101
5102442004012041
63045425345321
7331154150020
oct62706730121
918560103674
106830141521
112995489465
1213a7498241
1384b073178
1448b1828b7
1529e965981
hex1971bb051

6830141521 has 4 divisors (see below), whose sum is σ = 7805876032. Its totient is φ = 5854407012.

The previous prime is 6830141519. The next prime is 6830141573. The reversal of 6830141521 is 1251410386.

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 a cyclic number.

It is not a de Polignac number, because 6830141521 - 21 = 6830141519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6830141501) 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, 487867245 + ... + 487867258.

It is an arithmetic number, because the mean of its divisors is an integer number (1951469008).

Almost surely, 26830141521 is an apocalyptic number.

It is an amenable number.

6830141521 is a deficient number, since it is larger than the sum of its proper divisors (975734511).

6830141521 is an equidigital number, since it uses as much as digits as its factorization.

6830141521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975734510.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 6830141521 is about 82644.6702516260. The cubic root of 6830141521 is about 1897.3315746246.

The spelling of 6830141521 in words is "six billion, eight hundred thirty million, one hundred forty-one thousand, five hundred twenty-one".

Divisors: 1 7 975734503 6830141521