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648042882 = 23108007147
BaseRepresentation
bin100110101000000…
…101100110000010
31200011101222201020
4212220011212002
52311344333012
6144145450310
722026162564
oct4650054602
91604358636
10648042882
11302892233
12161040996
13a434a236
14620d1334
153bd5ca8c
hex26a05982

648042882 has 8 divisors (see below), whose sum is σ = 1296085776. Its totient is φ = 216014292.

The previous prime is 648042851. The next prime is 648042887. The reversal of 648042882 is 288240846.

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

648042882 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (648042887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54003568 + ... + 54003579.

It is an arithmetic number, because the mean of its divisors is an integer number (162010722).

Almost surely, 2648042882 is an apocalyptic number.

648042882 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

648042882 is a wasteful number, since it uses less digits than its factorization.

648042882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108007152.

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 648042882 is about 25456.6863908090. The cubic root of 648042882 is about 865.3688302035.

The spelling of 648042882 in words is "six hundred forty-eight million, forty-two thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 108007147 216014294 324021441 648042882