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42118514 = 2101320789
BaseRepresentation
bin1010000010101…
…0110101110010
32221020211201222
42200222311302
541240243024
64102425042
71021000334
oct240526562
987224658
1042118514
1121858299
1212132182
138958bc9
145845454
153a6e85e
hex282ad72

42118514 has 8 divisors (see below), whose sum is σ = 63243180. Its totient is φ = 21037456.

The previous prime is 42118511. The next prime is 42118541. The reversal of 42118514 is 41581124.

It can be written as a sum of positive squares in 2 ways, for example, as 41152225 + 966289 = 6415^2 + 983^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42118511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8369 + ... + 12420.

Almost surely, 242118514 is an apocalyptic number.

42118514 is a deficient number, since it is larger than the sum of its proper divisors (21124666).

42118514 is a wasteful number, since it uses less digits than its factorization.

42118514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21804.

The product of its digits is 1280, while the sum is 26.

The square root of 42118514 is about 6489.8778108682. The cubic root of 42118514 is about 347.9293080964.

Adding to 42118514 its reverse (41581124), we get a palindrome (83699638).

The spelling of 42118514 in words is "forty-two million, one hundred eighteen thousand, five hundred fourteen".

Divisors: 1 2 1013 2026 20789 41578 21059257 42118514