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69430271 = 565912269
BaseRepresentation
bin1000010001101…
…10101111111111
311211122102102112
410020312233333
5120233232041
610520044235
71502101421
oct410665777
9154572375
1069430271
1136211a99
121b30367b
13114cc401
149314811
156166deb
hex4236bff

69430271 has 4 divisors (see below), whose sum is σ = 69448200. Its totient is φ = 69412344.

The previous prime is 69430259. The next prime is 69430279. The reversal of 69430271 is 17203496.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69430271 - 222 = 65235967 is a prime.

It is a super-2 number, since 2×694302712 = 9641125062266882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69430279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (17362050).

Almost surely, 269430271 is an apocalyptic number.

69430271 is a deficient number, since it is larger than the sum of its proper divisors (17929).

69430271 is a wasteful number, since it uses less digits than its factorization.

69430271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17928.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 69430271 is about 8332.4828832707. The cubic root of 69430271 is about 411.0073800432.

The spelling of 69430271 in words is "sixty-nine million, four hundred thirty thousand, two hundred seventy-one".

Divisors: 1 5659 12269 69430271