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12080200050 = 2325226844889
BaseRepresentation
bin10110100000000100…
…10011100101110010
31011011220000202010200
423100002103211302
5144220012400200
65314412340030
7605234002062
oct132002234562
934156022120
1012080200050
115139a5a106
122411774616
1311a6964c89
148285373a2
154aa813800
hex2d0093972

12080200050 has 36 divisors (see below), whose sum is σ = 32455472010. Its totient is φ = 3221386560.

The previous prime is 12080200049. The next prime is 12080200061. The reversal of 12080200050 is 5000208021.

It can be written as a sum of positive squares in 3 ways, for example, as 6224736609 + 5855463441 = 78897^2 + 76521^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12080199996 and 12080200032.

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, 13421995 + ... + 13422894.

Almost surely, 212080200050 is an apocalyptic number.

12080200050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12080200050 is an abundant number, since it is smaller than the sum of its proper divisors (20375271960).

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

12080200050 is a wasteful number, since it uses less digits than its factorization.

12080200050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26844907 (or 26844899 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 12080200050 its reverse (5000208021), we get a palindrome (17080408071).

The spelling of 12080200050 in words is "twelve billion, eighty million, two hundred thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 26844889 53689778 80534667 134224445 161069334 241604001 268448890 402673335 483208002 671122225 805346670 1208020005 1342244450 2013366675 2416040010 4026733350 6040100025 12080200050