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10442012011 = 66371573303
BaseRepresentation
bin10011011100110010…
…00111010101101011
3222221201111011121121
421232121013111223
5132341123341021
64444052320111
7516522431464
oct115631072553
928851434547
1010442012011
1144792751a2
122035013037
13ca544b342
14710b41d6b
15411abe741
hex26e64756b

10442012011 has 4 divisors (see below), whose sum is σ = 10443591952. Its totient is φ = 10440432072.

The previous prime is 10442011999. The next prime is 10442012047. The reversal of 10442012011 is 11021024401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10442012011 - 233 = 1852077419 is a prime.

It is a super-2 number, since 2×104420120112 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10442412011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780015 + ... + 793288.

It is an arithmetic number, because the mean of its divisors is an integer number (2610897988).

Almost surely, 210442012011 is an apocalyptic number.

10442012011 is a deficient number, since it is larger than the sum of its proper divisors (1579941).

10442012011 is an equidigital number, since it uses as much as digits as its factorization.

10442012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579940.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10442012011 its reverse (11021024401), we get a palindrome (21463036412).

The spelling of 10442012011 in words is "ten billion, four hundred forty-two million, twelve thousand, eleven".

Divisors: 1 6637 1573303 10442012011