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42020041 = 77382231
BaseRepresentation
bin1010000001001…
…0110011001001
32221001211122211
42200102303021
541224120131
64100345121
71020110260
oct240226311
987054584
1042020041
11217a0308
12120a51a1
13892313b
14581b5d7
153a505b1
hex2812cc9

42020041 has 8 divisors (see below), whose sum is σ = 48681344. Its totient is φ = 35523360.

The previous prime is 42020029. The next prime is 42020059. The reversal of 42020041 is 14002024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42020041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42020441) 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, 40605 + ... + 41626.

It is an arithmetic number, because the mean of its divisors is an integer number (6085168).

Almost surely, 242020041 is an apocalyptic number.

It is an amenable number.

42020041 is a deficient number, since it is larger than the sum of its proper divisors (6661303).

42020041 is an equidigital number, since it uses as much as digits as its factorization.

42020041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82311.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 42020041 is about 6482.2867107218. The cubic root of 42020041 is about 347.6579438320.

Adding to 42020041 its reverse (14002024), we get a palindrome (56022065).

The spelling of 42020041 in words is "forty-two million, twenty thousand, forty-one".

Divisors: 1 7 73 511 82231 575617 6002863 42020041