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1999950060 = 2235281118621
BaseRepresentation
bin111011100110100…
…1101000011101100
312011101020222201110
41313031031003230
513043441400220
6530241512020
7100363203123
oct16715150354
95141228643
101999950060
11936a13099
12479942610
1325b45a704
1414d884aba
15ba8a2be0
hex7734d0ec

1999950060 has 48 divisors (see below), whose sum is σ = 5619835872. Its totient is φ = 531417600.

The previous prime is 1999950047. The next prime is 1999950077. The reversal of 1999950060 is 600599991.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1999949991 and 1999950009.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42451 + ... + 76170.

It is an arithmetic number, because the mean of its divisors is an integer number (117079914).

Almost surely, 21999950060 is an apocalyptic number.

1999950060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1999950060 is an abundant number, since it is smaller than the sum of its proper divisors (3619885812).

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

1999950060 is a wasteful number, since it uses less digits than its factorization.

1999950060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118914 (or 118912 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 48.

The square root of 1999950060 is about 44720.8012003363. The cubic root of 1999950060 is about 1259.9105630647.

The spelling of 1999950060 in words is "one billion, nine hundred ninety-nine million, nine hundred fifty thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 281 562 843 1124 1405 1686 2810 3372 4215 5620 8430 16860 118621 237242 355863 474484 593105 711726 1186210 1423452 1779315 2372420 3558630 7117260 33332501 66665002 99997503 133330004 166662505 199995006 333325010 399990012 499987515 666650020 999975030 1999950060