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347968969 = 443785483
BaseRepresentation
bin10100101111011…
…001010111001001
3220020202122200121
4110233121113021
51203040001334
654310103241
711423454535
oct2457312711
9806678617
10347968969
11169468267
129864ab21
13571248ca
14342dcbc5
1520836db4
hex14bd95c9

347968969 has 4 divisors (see below), whose sum is σ = 348754896. Its totient is φ = 347183044.

The previous prime is 347968963. The next prime is 347968987. The reversal of 347968969 is 969869743.

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 347968969 - 223 = 339580361 is a prime.

It is a super-2 number, since 2×3479689692 = 242164806773845922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347968963) 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, 392299 + ... + 393184.

It is an arithmetic number, because the mean of its divisors is an integer number (87188724).

Almost surely, 2347968969 is an apocalyptic number.

It is an amenable number.

347968969 is a deficient number, since it is larger than the sum of its proper divisors (785927).

347968969 is an equidigital number, since it uses as much as digits as its factorization.

347968969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785926.

The product of its digits is 17635968, while the sum is 61.

The square root of 347968969 is about 18653.9263695341. The cubic root of 347968969 is about 703.3640581403.

The spelling of 347968969 in words is "three hundred forty-seven million, nine hundred sixty-eight thousand, nine hundred sixty-nine".

Divisors: 1 443 785483 347968969