Base | Representation |
---|---|
bin | 1110011110010… |
… | …00110101010000 |
3 | 22110110012122000 |
4 | 13033020311100 |
5 | 222040040343 |
6 | 20014114000 |
7 | 3002646441 |
oct | 717106520 |
9 | 273405560 |
10 | 121408848 |
11 | 625942a0 |
12 | 347ab900 |
13 | 1c1cb272 |
14 | 121a52c8 |
15 | a9d2ed3 |
hex | 73c8d50 |
121408848 has 160 divisors (see below), whose sum is σ = 393724800. Its totient is φ = 35481600.
The previous prime is 121408829. The next prime is 121408853. The reversal of 121408848 is 848804121.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137368 + ... + 138248.
It is an arithmetic number, because the mean of its divisors is an integer number (2460780).
Almost surely, 2121408848 is an apocalyptic number.
121408848 is a gapful number since it is divisible by the number (18) 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 121408848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196862400).
121408848 is an abundant number, since it is smaller than the sum of its proper divisors (272315952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121408848 is a wasteful number, since it uses less digits than its factorization.
121408848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 938 (or 926 counting only the distinct ones).
The product of its (nonzero) digits is 16384, while the sum is 36.
The square root of 121408848 is about 11018.5683280542. The cubic root of 121408848 is about 495.1651973874.
The spelling of 121408848 in words is "one hundred twenty-one million, four hundred eight thousand, eight hundred forty-eight".
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