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42284608425 = 3252187931593
BaseRepresentation
bin100111011000010110…
…111110101110101001
311001010212221200002100
4213120112332232221
51143044324432200
631231505524013
73024565145523
oct473026765651
9131125850070
1042284608425
1116a29617184
128241043609
133cab498a77
142091b90a13
151177367d00
hex9d85beba9

42284608425 has 18 divisors (see below), whose sum is σ = 75736432382. Its totient is φ = 22551791040.

The previous prime is 42284608417. The next prime is 42284608481. The reversal of 42284608425 is 52480648224.

It can be written as a sum of positive squares in 3 ways, for example, as 182493081 + 42102115344 = 13509^2 + 205188^2 .

It is not a de Polignac number, because 42284608425 - 23 = 42284608417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 93965572 + ... + 93966021.

Almost surely, 242284608425 is an apocalyptic number.

42284608425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42284608425 is a deficient number, since it is larger than the sum of its proper divisors (33451823957).

42284608425 is a wasteful number, since it uses less digits than its factorization.

42284608425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187931609 (or 187931601 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 45.

The spelling of 42284608425 in words is "forty-two billion, two hundred eighty-four million, six hundred eight thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 187931593 563794779 939657965 1691384337 2818973895 4698289825 8456921685 14094869475 42284608425