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42328047 = 364321943
BaseRepresentation
bin1010000101110…
…1111111101111
32221122111011110
42201131333233
541313444142
64111123103
71022532246
oct241357757
987574143
1042328047
1121990763
1212213493
138a003a8
14589b95d
153ab199c
hex285dfef

42328047 has 8 divisors (see below), whose sum is σ = 56527744. Its totient is φ = 28173528.

The previous prime is 42328019. The next prime is 42328049. The reversal of 42328047 is 74082324.

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

It is not a de Polignac number, because 42328047 - 27 = 42327919 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 (42328049) 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, 9043 + ... + 12900.

It is an arithmetic number, because the mean of its divisors is an integer number (7065968).

Almost surely, 242328047 is an apocalyptic number.

42328047 is a deficient number, since it is larger than the sum of its proper divisors (14199697).

42328047 is a wasteful number, since it uses less digits than its factorization.

42328047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22589.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 42328047 is about 6506.0008453734. Note that the first 3 decimals coincide. The cubic root of 42328047 is about 348.5053185386.

The spelling of 42328047 in words is "forty-two million, three hundred twenty-eight thousand, forty-seven".

Divisors: 1 3 643 1929 21943 65829 14109349 42328047