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82028429 = 716097283
BaseRepresentation
bin1001110001110…
…10011110001101
312201100110211222
410320322132031
5131444402204
612050053125
72014141640
oct470723615
9181313758
1082028429
114233719a
122357a1a5
1313cc0742
14ac73a57
157304abe
hex4e3a78d

82028429 has 8 divisors (see below), whose sum is σ = 93817920. Its totient is φ = 70256736.

The previous prime is 82028423. The next prime is 82028431. The reversal of 82028429 is 92482028.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82028429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82028423) 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, 7622 + ... + 14904.

It is an arithmetic number, because the mean of its divisors is an integer number (11727240).

Almost surely, 282028429 is an apocalyptic number.

It is an amenable number.

82028429 is a deficient number, since it is larger than the sum of its proper divisors (11789491).

82028429 is a wasteful number, since it uses less digits than its factorization.

82028429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8899.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 82028429 is about 9056.9547310340. The cubic root of 82028429 is about 434.4983497938.

The spelling of 82028429 in words is "eighty-two million, twenty-eight thousand, four hundred twenty-nine".

Divisors: 1 7 1609 7283 11263 50981 11718347 82028429