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6830311553 = 13525408581
BaseRepresentation
bin1100101110001111…
…00100100010000001
3122122000102202222222
412113013210202001
5102442024432203
63045433140425
7331155455522
oct62707444201
918560382888
106830311553
11299559518a
1213a755a715
1384b102690
1448b1c8849
1529e99b038
hex1971e4881

6830311553 has 4 divisors (see below), whose sum is σ = 7355720148. Its totient is φ = 6304902960.

The previous prime is 6830311529. The next prime is 6830311567. The reversal of 6830311553 is 3551130386.

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 3877801984 + 2952509569 = 62272^2 + 54337^2 .

It is a cyclic number.

It is not a de Polignac number, because 6830311553 - 220 = 6829262977 is a prime.

It is a super-2 number, since 2×68303115532 = 93306311822090543618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6830319553) 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, 262704278 + ... + 262704303.

It is an arithmetic number, because the mean of its divisors is an integer number (1838930037).

Almost surely, 26830311553 is an apocalyptic number.

It is an amenable number.

6830311553 is a deficient number, since it is larger than the sum of its proper divisors (525408595).

6830311553 is a wasteful number, since it uses less digits than its factorization.

6830311553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525408594.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 6830311553 is about 82645.6989382993. The cubic root of 6830311553 is about 1897.3473187789.

The spelling of 6830311553 in words is "six billion, eight hundred thirty million, three hundred eleven thousand, five hundred fifty-three".

Divisors: 1 13 525408581 6830311553