| Base | Representation |
|---|---|
| bin | 1110011111011… |
| … | …11010111010000 |
| 3 | 22110202020010100 |
| 4 | 13033233113100 |
| 5 | 222110113142 |
| 6 | 20021332400 |
| 7 | 3004204533 |
| oct | 717572720 |
| 9 | 273666110 |
| 10 | 121566672 |
| 11 | 62691927 |
| 12 | 34867100 |
| 13 | 1c255056 |
| 14 | 12206a1a |
| 15 | aa14b4c |
| hex | 73ef5d0 |
121566672 has 60 divisors (see below), whose sum is σ = 341808480. Its totient is φ = 40332864.
The previous prime is 121566671. The next prime is 121566689. The reversal of 121566672 is 276665121.
It is a happy number.
It is a super-3 number, since 3×1215666723 (a number of 25 digits) contains 333 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121566671) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30829 + ... + 34547.
It is an arithmetic number, because the mean of its divisors is an integer number (5696808).
Almost surely, 2121566672 is an apocalyptic number.
121566672 is a gapful number since it is divisible by the number (12) 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 121566672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170904240).
121566672 is an abundant number, since it is smaller than the sum of its proper divisors (220241808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121566672 is a wasteful number, since it uses less digits than its factorization.
121566672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3960 (or 3951 counting only the distinct ones).
The product of its digits is 30240, while the sum is 36.
The square root of 121566672 is about 11025.7277310842. The cubic root of 121566672 is about 495.3796658684.
The spelling of 121566672 in words is "one hundred twenty-one million, five hundred sixty-six thousand, six hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •