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42486819 = 323615751
BaseRepresentation
bin1010001000010…
…0110000100011
32221221112221220
42202010300203
541334034234
64114350123
71024063164
oct242046043
987845856
1042486819
1121a89a81
121228b343
138a5773b
1458dd76b
153ae3a49
hex2884c23

42486819 has 8 divisors (see below), whose sum is σ = 59112192. Its totient is φ = 27093000.

The previous prime is 42486817. The next prime is 42486877. The reversal of 42486819 is 91868424.

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

It is not a de Polignac number, because 42486819 - 21 = 42486817 is a prime.

It is a super-2 number, since 2×424868192 = 3610259577477522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42486817) 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, 307807 + ... + 307944.

It is an arithmetic number, because the mean of its divisors is an integer number (7389024).

Almost surely, 242486819 is an apocalyptic number.

42486819 is a deficient number, since it is larger than the sum of its proper divisors (16625373).

42486819 is a wasteful number, since it uses less digits than its factorization.

42486819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615777.

The product of its digits is 110592, while the sum is 42.

The square root of 42486819 is about 6518.1913902554. The cubic root of 42486819 is about 348.9405212771.

The spelling of 42486819 in words is "forty-two million, four hundred eighty-six thousand, eight hundred nineteen".

Divisors: 1 3 23 69 615751 1847253 14162273 42486819