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42412281 = 338936343
BaseRepresentation
bin1010000111001…
…0100011111001
32221210202201020
42201302203321
541324143111
64113013053
71023332652
oct241624371
987722636
1042412281
1121a38a7a
1212254189
138a2c832
1458c0529
153acb906
hex28728f9

42412281 has 8 divisors (see below), whose sum is σ = 56696640. Its totient is φ = 28201392.

The previous prime is 42412277. The next prime is 42412303. The reversal of 42412281 is 18221424.

42412281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42412281 - 22 = 42412277 is a prime.

It is a super-2 number, since 2×424122812 = 3597603159245922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42412211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17005 + ... + 19338.

It is an arithmetic number, because the mean of its divisors is an integer number (7087080).

Almost surely, 242412281 is an apocalyptic number.

It is an amenable number.

42412281 is a deficient number, since it is larger than the sum of its proper divisors (14284359).

42412281 is a wasteful number, since it uses less digits than its factorization.

42412281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36735.

The product of its digits is 1024, while the sum is 24.

The square root of 42412281 is about 6512.4711899555. The cubic root of 42412281 is about 348.7363438082.

The spelling of 42412281 in words is "forty-two million, four hundred twelve thousand, two hundred eighty-one".

Divisors: 1 3 389 1167 36343 109029 14137427 42412281