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42043566080 = 21154105817
BaseRepresentation
bin100111001001111111…
…011110100000000000
311000112002101110011002
4213021333132200000
51142101123103310
631151535311132
73015610262255
oct471177364000
9130462343132
1042043566080
111691555152a
12819437b4a8
133c70571669
14206bb6742c
151161102da5
hex9c9fde800

42043566080 has 48 divisors (see below), whose sum is σ = 100879948260. Its totient is φ = 16817422336.

The previous prime is 42043566067. The next prime is 42043566083. The reversal of 42043566080 is 8066534024.

It can be written as a sum of positive squares in 2 ways, for example, as 41121350656 + 922215424 = 202784^2 + 30368^2 .

It is a super-2 number, since 2×420435660802 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42043566083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042669 + ... + 2063148.

Almost surely, 242043566080 is an apocalyptic number.

42043566080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42043566080 is an abundant number, since it is smaller than the sum of its proper divisors (58836382180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42043566080 is an equidigital number, since it uses as much as digits as its factorization.

42043566080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105844 (or 4105824 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 42043566080 in words is "forty-two billion, forty-three million, five hundred sixty-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2048 2560 5120 10240 4105817 8211634 16423268 20529085 32846536 41058170 65693072 82116340 131386144 164232680 262772288 328465360 525544576 656930720 1051089152 1313861440 2102178304 2627722880 4204356608 5255445760 8408713216 10510891520 21021783040 42043566080