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42060331 = 42619871
BaseRepresentation
bin1010000001110…
…0101000101011
32221010212221001
42200130220223
541231412311
64101255431
71020335605
oct240345053
987125831
1042060331
1121818605
1212104577
138938591
14582c175
153a5c4c1
hex281ca2b

42060331 has 4 divisors (see below), whose sum is σ = 42074464. Its totient is φ = 42046200.

The previous prime is 42060313. The next prime is 42060341. The reversal of 42060331 is 13306024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42060331 - 27 = 42060203 is a prime.

It is a super-2 number, since 2×420603312 = 3538142887659122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42060299 and 42060308.

It is not an unprimeable number, because it can be changed into a prime (42060341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 675 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (10518616).

Almost surely, 242060331 is an apocalyptic number.

42060331 is a deficient number, since it is larger than the sum of its proper divisors (14133).

42060331 is an equidigital number, since it uses as much as digits as its factorization.

42060331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14132.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 42060331 is about 6485.3936657693. The cubic root of 42060331 is about 347.7690230837.

Adding to 42060331 its reverse (13306024), we get a palindrome (55366355).

The spelling of 42060331 in words is "forty-two million, sixty thousand, three hundred thirty-one".

Divisors: 1 4261 9871 42060331