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82969571 = 1711934091
BaseRepresentation
bin1001111001000…
…00001111100011
312210010021212002
410330200033203
5132220011241
612122154215
72025141536
oct474401743
9183107762
1082969571
114291a2a3
122395296b
131425cc29
14b03aa1d
15743d89b
hex4f203e3

82969571 has 8 divisors (see below), whose sum is σ = 87945264. Its totient is φ = 78004480.

The previous prime is 82969541. The next prime is 82969573. The reversal of 82969571 is 17596928.

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 82969571 - 222 = 78775267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82969573) 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, 18236 + ... + 22326.

It is an arithmetic number, because the mean of its divisors is an integer number (10993158).

Almost surely, 282969571 is an apocalyptic number.

82969571 is a deficient number, since it is larger than the sum of its proper divisors (4975693).

82969571 is a wasteful number, since it uses less digits than its factorization.

82969571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301.

The product of its digits is 272160, while the sum is 47.

The square root of 82969571 is about 9108.7634177203. The cubic root of 82969571 is about 436.1537540240.

The spelling of 82969571 in words is "eighty-two million, nine hundred sixty-nine thousand, five hundred seventy-one".

Divisors: 1 17 1193 4091 20281 69547 4880563 82969571