Base | Representation |
---|---|
bin | 1110011110001… |
… | …11100100101000 |
3 | 22110102221112220 |
4 | 13033013210220 |
5 | 222034404223 |
6 | 20014034040 |
7 | 3002625420 |
oct | 717074450 |
9 | 273387486 |
10 | 121403688 |
11 | 6259042a |
12 | 347a8920 |
13 | 1c1c8b03 |
14 | 121a3480 |
15 | a9d16e3 |
hex | 73c7928 |
121403688 has 64 divisors (see below), whose sum is σ = 358072320. Its totient is φ = 33566400.
The previous prime is 121403687. The next prime is 121403701. The reversal of 121403688 is 886304121.
It is not an unprimeable number, because it can be changed into a prime (121403687) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6448 + ... + 16863.
It is an arithmetic number, because the mean of its divisors is an integer number (5594880).
Almost surely, 2121403688 is an apocalyptic number.
It is an amenable number.
121403688 is an abundant number, since it is smaller than the sum of its proper divisors (236668632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121403688 is a wasteful number, since it uses less digits than its factorization.
121403688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23358 (or 23354 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 121403688 is about 11018.3341753643. The cubic root of 121403688 is about 495.1581822792.
The spelling of 121403688 in words is "one hundred twenty-one million, four hundred three thousand, six hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •