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642076482 = 23415035189
BaseRepresentation
bin100110010001010…
…100111101000010
31122202011212100110
4212101110331002
52303332421412
6143413532150
721624363045
oct4621247502
91582155313
10642076482
112aa487623
1215b044056
13a303b618
14613bac5c
153b57ed3c
hex26454f42

642076482 has 32 divisors (see below), whose sum is σ = 1318343040. Its totient is φ = 208350080.

The previous prime is 642076471. The next prime is 642076483. The reversal of 642076482 is 284670246.

It is a self number, because there is not a number n which added to its sum of digits gives 642076482.

It is not an unprimeable number, because it can be changed into a prime (642076483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121144 + ... + 126332.

It is an arithmetic number, because the mean of its divisors is an integer number (41198220).

Almost surely, 2642076482 is an apocalyptic number.

642076482 is an abundant number, since it is smaller than the sum of its proper divisors (676266558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642076482 is a wasteful number, since it uses less digits than its factorization.

642076482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5738.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 642076482 is about 25339.2281255764. The cubic root of 642076482 is about 862.7048792012.

The spelling of 642076482 in words is "six hundred forty-two million, seventy-six thousand, four hundred eighty-two".

Divisors: 1 2 3 6 41 82 123 246 503 1006 1509 3018 5189 10378 15567 20623 31134 41246 61869 123738 212749 425498 638247 1276494 2610067 5220134 7830201 15660402 107012747 214025494 321038241 642076482