Base | Representation |
---|---|
bin | 1110011101010… |
… | …10100101011010 |
3 | 22110012220200100 |
4 | 13032222211122 |
5 | 222022104304 |
6 | 20011320230 |
7 | 3001622310 |
oct | 716524532 |
9 | 273186610 |
10 | 121284954 |
11 | 6250a1aa |
12 | 34750076 |
13 | 1c186a5b |
14 | 121720b0 |
15 | a9ab439 |
hex | 73aa95a |
121284954 has 48 divisors (see below), whose sum is σ = 303114240. Its totient is φ = 34331040.
The previous prime is 121284893. The next prime is 121284959. The reversal of 121284954 is 459482121.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (121284959) 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, 9319 + ... + 18149.
It is an arithmetic number, because the mean of its divisors is an integer number (6314880).
Almost surely, 2121284954 is an apocalyptic number.
121284954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 121284954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151557120).
121284954 is an abundant number, since it is smaller than the sum of its proper divisors (181829286).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121284954 is a wasteful number, since it uses less digits than its factorization.
121284954 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8955 (or 8952 counting only the distinct ones).
The product of its digits is 23040, while the sum is 36.
The square root of 121284954 is about 11012.9448377807. The cubic root of 121284954 is about 494.9967064366.
It can be divided in two parts, 1212849 and 54, that added together give a triangular number (1212903 = T1557).
The spelling of 121284954 in words is "one hundred twenty-one million, two hundred eighty-four thousand, nine hundred fifty-four".
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