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82512741 = 327504247
BaseRepresentation
bin1001110101100…
…00101101100101
312202021002012110
410322300231211
5132110401431
612104311233
72021226633
oct472605545
9182232173
1082512741
1142638053
1223772519
131413000c
14ad5c353
15739d346
hex4eb0b65

82512741 has 4 divisors (see below), whose sum is σ = 110016992. Its totient is φ = 55008492.

The previous prime is 82512733. The next prime is 82512751. The reversal of 82512741 is 14721528.

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 not a de Polignac number, because 82512741 - 23 = 82512733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82512699 and 82512708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82512751) 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, 13752121 + ... + 13752126.

It is an arithmetic number, because the mean of its divisors is an integer number (27504248).

Almost surely, 282512741 is an apocalyptic number.

It is an amenable number.

82512741 is a deficient number, since it is larger than the sum of its proper divisors (27504251).

82512741 is a wasteful number, since it uses less digits than its factorization.

82512741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27504250.

The product of its digits is 4480, while the sum is 30.

The square root of 82512741 is about 9083.6524041819. The cubic root of 82512741 is about 435.3517936342.

The spelling of 82512741 in words is "eighty-two million, five hundred twelve thousand, seven hundred forty-one".

Divisors: 1 3 27504247 82512741