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42803047 = 713744633
BaseRepresentation
bin1010001101000…
…1111101100111
32222112121202001
42203101331213
541424144142
64125230131
71026551140
oct243217547
988477661
1042803047
1122185621
1212402347
138b38661
145982ac7
153b575b7
hex28d1f67

42803047 has 8 divisors (see below), whose sum is σ = 49275936. Its totient is φ = 36419712.

The previous prime is 42803021. The next prime is 42803053. The reversal of 42803047 is 74030824.

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

It is not a de Polignac number, because 42803047 - 27 = 42802919 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 (42803087) 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, 21358 + ... + 23275.

It is an arithmetic number, because the mean of its divisors is an integer number (6159492).

Almost surely, 242803047 is an apocalyptic number.

42803047 is a deficient number, since it is larger than the sum of its proper divisors (6472889).

42803047 is a wasteful number, since it uses less digits than its factorization.

42803047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44777.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 42803047 is about 6542.4037631439. The cubic root of 42803047 is about 349.8040998961.

The spelling of 42803047 in words is "forty-two million, eight hundred three thousand, forty-seven".

Divisors: 1 7 137 959 44633 312431 6114721 42803047