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121300050 = 23523172551
BaseRepresentation
bin1110011101011…
…10010001010010
322110020200101110
413032232101102
5222023100200
620011514150
73002014314
oct716562122
9273220343
10121300050
116251a583
1234758956
131c1908a1
14121777b4
15a9b0b50
hex73ae452

121300050 has 48 divisors (see below), whose sum is σ = 301891392. Its totient is φ = 32232000.

The previous prime is 121300043. The next prime is 121300051. The reversal of 121300050 is 50003121.

It is a junction number, because it is equal to n+sod(n) for n = 121299999 and 121300035.

It is not an unprimeable number, because it can be changed into a prime (121300051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46275 + ... + 48825.

It is an arithmetic number, because the mean of its divisors is an integer number (6289404).

Almost surely, 2121300050 is an apocalyptic number.

121300050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121300050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150945696).

121300050 is an abundant number, since it is smaller than the sum of its proper divisors (180591342).

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

121300050 is a wasteful number, since it uses less digits than its factorization.

121300050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 121300050 is about 11013.6301917215. The cubic root of 121300050 is about 495.0172425378.

Adding to 121300050 its reverse (50003121), we get a palindrome (171303171).

The spelling of 121300050 in words is "one hundred twenty-one million, three hundred thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 317 634 951 1585 1902 2551 3170 4755 5102 7653 7925 9510 12755 15306 15850 23775 25510 38265 47550 63775 76530 127550 191325 382650 808667 1617334 2426001 4043335 4852002 8086670 12130005 20216675 24260010 40433350 60650025 121300050