Base | Representation |
---|---|
bin | 1110011110011… |
… | …11000111011001 |
3 | 22110111111221020 |
4 | 13033033013121 |
5 | 222041401320 |
6 | 20014433053 |
7 | 3003114456 |
oct | 717170731 |
9 | 273444836 |
10 | 121434585 |
11 | 62601668 |
12 | 34802789 |
13 | 1c209bac |
14 | 121b082d |
15 | a9da940 |
hex | 73cf1d9 |
121434585 has 8 divisors (see below), whose sum is σ = 194295360. Its totient is φ = 64765104.
The previous prime is 121434583. The next prime is 121434617. The reversal of 121434585 is 585434121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 121434585 - 21 = 121434583 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (121434583) 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 7 ways as a sum of consecutive naturals, for example, 4047805 + ... + 4047834.
It is an arithmetic number, because the mean of its divisors is an integer number (24286920).
Almost surely, 2121434585 is an apocalyptic number.
121434585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
121434585 is a deficient number, since it is larger than the sum of its proper divisors (72860775).
121434585 is an equidigital number, since it uses as much as digits as its factorization.
121434585 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8095647.
The product of its digits is 19200, while the sum is 33.
The square root of 121434585 is about 11019.7361583660. The cubic root of 121434585 is about 495.2001843111.
The spelling of 121434585 in words is "one hundred twenty-one million, four hundred thirty-four thousand, five hundred eighty-five".
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