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82612873 = 721685977
BaseRepresentation
bin1001110110010…
…01001010001001
312202110011120001
410323021022021
5132122102443
612110403001
72022124600
oct473111211
9182404501
1082612873
11426a6302
1223800461
1314166775
14ad86a37
1573bcd4d
hex4ec9289

82612873 has 6 divisors (see below), whose sum is σ = 96100746. Its totient is φ = 70810992.

The previous prime is 82612867. The next prime is 82612903. The reversal of 82612873 is 37821628.

It can be written as a sum of positive squares in only one way, i.e., 68112009 + 14500864 = 8253^2 + 3808^2 .

It is not a de Polignac number, because 82612873 - 25 = 82612841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82612813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842940 + ... + 843037.

It is an arithmetic number, because the mean of its divisors is an integer number (16016791).

Almost surely, 282612873 is an apocalyptic number.

It is an amenable number.

82612873 is a deficient number, since it is larger than the sum of its proper divisors (13487873).

82612873 is a wasteful number, since it uses less digits than its factorization.

82612873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685991 (or 1685984 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 82612873 is about 9089.1623926520. The cubic root of 82612873 is about 435.5278271511.

The spelling of 82612873 in words is "eighty-two million, six hundred twelve thousand, eight hundred seventy-three".

Divisors: 1 7 49 1685977 11801839 82612873