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42213005 = 510381967
BaseRepresentation
bin1010000100000…
…1111010001101
32221102122100122
42201001322031
541301304010
64104434325
71021542662
oct241017215
987378318
1042213005
112191228a
12121789a5
13898cc13
14586ba69
153a8c855
hex2841e8d

42213005 has 8 divisors (see below), whose sum is σ = 51148032. Its totient is φ = 33442128.

The previous prime is 42212999. The next prime is 42213013. The reversal of 42213005 is 50031224.

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

It is a cyclic number.

It is not a de Polignac number, because 42213005 - 26 = 42212941 is a prime.

It is a super-2 number, since 2×422130052 = 3563875582260050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40469 + ... + 41498.

It is an arithmetic number, because the mean of its divisors is an integer number (6393504).

Almost surely, 242213005 is an apocalyptic number.

It is an amenable number.

42213005 is a deficient number, since it is larger than the sum of its proper divisors (8935027).

42213005 is a wasteful number, since it uses less digits than its factorization.

42213005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82075.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 42213005 is about 6497.1536075423. The cubic root of 42213005 is about 348.1893017058.

Adding to 42213005 its reverse (50031224), we get a palindrome (92244229).

The spelling of 42213005 in words is "forty-two million, two hundred thirteen thousand, five".

Divisors: 1 5 103 515 81967 409835 8442601 42213005