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42705033 = 372033573
BaseRepresentation
bin1010001011101…
…0000010001001
32222100122021220
42202322002021
541413030113
64123152253
71025662320
oct242720211
988318256
1042705033
1122118a18
1212375689
138b02b67
1459590b7
153b38523
hex28ba089

42705033 has 8 divisors (see below), whose sum is σ = 65074368. Its totient is φ = 24402864.

The previous prime is 42705029. The next prime is 42705049. The reversal of 42705033 is 33050724.

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

It is not a de Polignac number, because 42705033 - 22 = 42705029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42704994 and 42705012.

It is not an unprimeable number, because it can be changed into a prime (42705053) 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, 1016766 + ... + 1016807.

It is an arithmetic number, because the mean of its divisors is an integer number (8134296).

Almost surely, 242705033 is an apocalyptic number.

It is an amenable number.

42705033 is a deficient number, since it is larger than the sum of its proper divisors (22369335).

42705033 is a wasteful number, since it uses less digits than its factorization.

42705033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033583.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 42705033 is about 6534.9087981394. The cubic root of 42705033 is about 349.5368922642.

Adding to 42705033 its reverse (33050724), we get a palindrome (75755757).

The spelling of 42705033 in words is "forty-two million, seven hundred five thousand, thirty-three".

Divisors: 1 3 7 21 2033573 6100719 14235011 42705033