Base | Representation |
---|---|
bin | 111000011010000000… |
… | …1111010111110000000 |
3 | 102120122220020022221220 |
4 | 1300310001322332000 |
5 | 3441034243100300 |
6 | 131351451115040 |
7 | 11515523016165 |
oct | 1606401727600 |
9 | 376586208856 |
10 | 121132003200 |
11 | 4740a94895a |
12 | 1b586a42a80 |
13 | b565891a50 |
14 | 5c1181606c |
15 | 323e55dda0 |
hex | 1c3407af80 |
121132003200 has 384 divisors, whose sum is σ = 436978281600. Its totient is φ = 29309952000.
The previous prime is 121132003193. The next prime is 121132003207. The reversal of 121132003200 is 2300231121.
It is an interprime number because it is at equal distance from previous prime (121132003193) and next prime (121132003207).
It is a tau number, because it is divible by the number of its divisors (384).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 121132003200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121132003207) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7354975 + ... + 7371425.
It is an arithmetic number, because the mean of its divisors is an integer number (1137964275).
Almost surely, 2121132003200 is an apocalyptic number.
121132003200 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 121132003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218489140800).
121132003200 is an abundant number, since it is smaller than the sum of its proper divisors (315846278400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121132003200 is a wasteful number, since it uses less digits than its factorization.
121132003200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16550 (or 16533 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 121132003200 its reverse (2300231121), we get a palindrome (123432234321).
The spelling of 121132003200 in words is "one hundred twenty-one billion, one hundred thirty-two million, three thousand, two hundred".
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