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82674389 = 729407263
BaseRepresentation
bin1001110110110…
…00001011010101
312202120021221102
410323120023111
5132131040024
612111555445
72022502130
oct473301325
9182507842
1082674389
1142738546
122382bb85
1314188775
14ada1217
1573d11ae
hex4ed82d5

82674389 has 8 divisors (see below), whose sum is σ = 97743360. Its totient is φ = 68420016.

The previous prime is 82674359. The next prime is 82674413. The reversal of 82674389 is 98347628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82674389 - 28 = 82674133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82674359) 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, 203429 + ... + 203834.

It is an arithmetic number, because the mean of its divisors is an integer number (12217920).

Almost surely, 282674389 is an apocalyptic number.

It is an amenable number.

82674389 is a deficient number, since it is larger than the sum of its proper divisors (15068971).

82674389 is a wasteful number, since it uses less digits than its factorization.

82674389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407299.

The product of its digits is 580608, while the sum is 47.

The square root of 82674389 is about 9092.5457931209. The cubic root of 82674389 is about 435.6359026506.

The spelling of 82674389 in words is "eighty-two million, six hundred seventy-four thousand, three hundred eighty-nine".

Divisors: 1 7 29 203 407263 2850841 11810627 82674389