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82875971 = 1314491409
BaseRepresentation
bin1001111000010…
…01011001000011
312202221112110102
410330021121003
5132204012341
612120153015
72024301623
oct474113103
9182845412
1082875971
1142865a42
122390876b
1314229449
14b014883
157420c9b
hex4f09643

82875971 has 8 divisors (see below), whose sum is σ = 83754000. Its totient is φ = 82001920.

The previous prime is 82875953. The next prime is 82876019. The reversal of 82875971 is 17957828.

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 82875971 - 210 = 82874947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82875911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58115 + ... + 59523.

It is an arithmetic number, because the mean of its divisors is an integer number (10469250).

Almost surely, 282875971 is an apocalyptic number.

82875971 is a deficient number, since it is larger than the sum of its proper divisors (878029).

82875971 is a wasteful number, since it uses less digits than its factorization.

82875971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989.

The product of its digits is 282240, while the sum is 47.

The square root of 82875971 is about 9103.6240585824. The cubic root of 82875971 is about 435.9896804083.

The spelling of 82875971 in words is "eighty-two million, eight hundred seventy-five thousand, nine hundred seventy-one".

Divisors: 1 131 449 1409 58819 184579 632641 82875971