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1680270000 = 2435456009
BaseRepresentation
bin110010000100110…
…1110001010110000
311100002201120010020
41210021232022300
511420122120000
6434422003440
756432026233
oct14411561260
94302646106
101680270000
117925177a2
123aa876580
1320a15c006
1411d22b41a
159c7a7ba0
hex6426e2b0

1680270000 has 100 divisors (see below), whose sum is σ = 5424232440. Its totient is φ = 448064000.

The previous prime is 1680269977. The next prime is 1680270013. The reversal of 1680270000 is 720861.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1996 + ... + 58004.

Almost surely, 21680270000 is an apocalyptic number.

1680270000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1680270000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2712116220).

1680270000 is an abundant number, since it is smaller than the sum of its proper divisors (3743962440).

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

1680270000 is an equidigital number, since it uses as much as digits as its factorization.

1680270000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56040 (or 56019 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1680270000 is about 40991.0965942606. The cubic root of 1680270000 is about 1188.8480720193.

Adding to 1680270000 its reverse (720861), we get a palindrome (1680990861).

The spelling of 1680270000 in words is "one billion, six hundred eighty million, two hundred seventy thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 150 200 240 250 300 375 400 500 600 625 750 1000 1200 1250 1500 1875 2000 2500 3000 3750 5000 6000 7500 10000 15000 30000 56009 112018 168027 224036 280045 336054 448072 560090 672108 840135 896144 1120180 1344216 1400225 1680270 2240360 2688432 2800450 3360540 4200675 4480720 5600900 6721080 7001125 8401350 11201800 13442160 14002250 16802700 21003375 22403600 28004500 33605400 35005625 42006750 56009000 67210800 70011250 84013500 105016875 112018000 140022500 168027000 210033750 280045000 336054000 420067500 560090000 840135000 1680270000