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42120143303 = 7113297117923
BaseRepresentation
bin100111001110100011…
…100110000111000111
311000201102110222100112
4213032203212013013
51142230224041203
631203312503235
73020530211420
oct471643460707
9130642428315
1042120143303
11169547a5097
1281b5b4ab1b
133c833a3b24
142077dbc647
151167bcc6d8
hex9ce8e61c7

42120143303 has 16 divisors (see below), whose sum is σ = 48582356736. Its totient is φ = 35769444480.

The previous prime is 42120143291. The next prime is 42120143321. The reversal of 42120143303 is 30334102124.

It is not a de Polignac number, because 42120143303 - 28 = 42120143047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120143803) 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 15 ways as a sum of consecutive naturals, for example, 2341100 + ... + 2359022.

It is an arithmetic number, because the mean of its divisors is an integer number (3036397296).

Almost surely, 242120143303 is an apocalyptic number.

42120143303 is a deficient number, since it is larger than the sum of its proper divisors (6462213433).

42120143303 is a wasteful number, since it uses less digits than its factorization.

42120143303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21014.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 42120143303 its reverse (30334102124), we get a palindrome (72454245427).

The spelling of 42120143303 in words is "forty-two billion, one hundred twenty million, one hundred forty-three thousand, three hundred three".

Divisors: 1 7 113 791 2971 17923 20797 125461 335723 2025299 2350061 14177093 53249233 372744631 6017163329 42120143303