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42487473 = 3712591607
BaseRepresentation
bin1010001000010…
…0111010110001
32221221120212010
42202010322301
541334044343
64114353133
71024065120
oct242047261
987846763
1042487473
1121a8a516
121228b7a9
138a57b22
1458ddab7
153ae3d33
hex2884eb1

42487473 has 16 divisors (see below), whose sum is σ = 64834560. Its totient is φ = 24244176.

The previous prime is 42487441. The next prime is 42487513. The reversal of 42487473 is 37478424.

It is not a de Polignac number, because 42487473 - 25 = 42487441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42487373) 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 15 ways as a sum of consecutive naturals, for example, 25636 + ... + 27242.

It is an arithmetic number, because the mean of its divisors is an integer number (4052160).

Almost surely, 242487473 is an apocalyptic number.

It is an amenable number.

42487473 is a deficient number, since it is larger than the sum of its proper divisors (22347087).

42487473 is a wasteful number, since it uses less digits than its factorization.

42487473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876.

The product of its digits is 150528, while the sum is 39.

The square root of 42487473 is about 6518.2415573527. The cubic root of 42487473 is about 348.9423116828.

The spelling of 42487473 in words is "forty-two million, four hundred eighty-seven thousand, four hundred seventy-three".

Divisors: 1 3 7 21 1259 1607 3777 4821 8813 11249 26439 33747 2023213 6069639 14162491 42487473