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6991325201 = 77191389097
BaseRepresentation
bin1101000001011011…
…10010100000010001
3200001020102010012102
412200231302200101
5103304234401301
63113424210145
7335152166210
oct64055624021
920036363172
106991325201
112a6846a113
121431469955
13875589623
144a473d077
152adba3b6b
hex1a0b72811

6991325201 has 8 divisors (see below), whose sum is σ = 8001204480. Its totient is φ = 5984225568.

The previous prime is 6991325171. The next prime is 6991325213. The reversal of 6991325201 is 1025231996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6991325201 - 26 = 6991325137 is a prime.

It is a super-2 number, since 2×69913252012 = 97757256132275380802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6991325221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689516 + ... + 699581.

It is an arithmetic number, because the mean of its divisors is an integer number (1000150560).

Almost surely, 26991325201 is an apocalyptic number.

It is an amenable number.

6991325201 is a deficient number, since it is larger than the sum of its proper divisors (1009879279).

6991325201 is a wasteful number, since it uses less digits than its factorization.

6991325201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389823.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 6991325201 is about 83614.1447423820. The cubic root of 6991325201 is about 1912.1406516724.

The spelling of 6991325201 in words is "six billion, nine hundred ninety-one million, three hundred twenty-five thousand, two hundred one".

Divisors: 1 7 719 5033 1389097 9723679 998760743 6991325201