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42168763 = 7513193
BaseRepresentation
bin1010000011011…
…1000110111011
32221100101200001
42200313012323
541243400023
64103453431
71021300000
oct240670673
987311601
1042168763
112189201a
1212157277
138975a40
1458598a7
153a7e6ad
hex28371bb

42168763 has 24 divisors (see below), whose sum is σ = 53255328. Its totient is φ = 33191424.

The previous prime is 42168719. The next prime is 42168803. The reversal of 42168763 is 36786124.

It is not a de Polignac number, because 42168763 - 217 = 42037691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42168703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218395 + ... + 218587.

It is an arithmetic number, because the mean of its divisors is an integer number (2218972).

Almost surely, 242168763 is an apocalyptic number.

42168763 is a deficient number, since it is larger than the sum of its proper divisors (11086565).

42168763 is an frugal number, since it uses more digits than its factorization.

42168763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 213 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 42168763 is about 6493.7479932624. The cubic root of 42168763 is about 348.0676174374.

The spelling of 42168763 in words is "forty-two million, one hundred sixty-eight thousand, seven hundred sixty-three".

Divisors: 1 7 13 49 91 193 343 637 1351 2401 2509 4459 9457 16807 17563 31213 66199 122941 218491 463393 860587 3243751 6024109 42168763