Base | Representation |
---|---|
bin | 11000110000010… |
… | …010100011111001 |
3 | 1001221111001010102 |
4 | 120300102203321 |
5 | 1322304441441 |
6 | 105113325145 |
7 | 13202044340 |
oct | 3060224371 |
9 | 1057431112 |
10 | 415312121 |
11 | 1a3484164 |
12 | b71067b5 |
13 | 68073023 |
14 | 3d22cb57 |
15 | 266da69b |
hex | 18c128f9 |
415312121 has 8 divisors (see below), whose sum is σ = 474866304. Its totient is φ = 355813920.
The previous prime is 415312067. The next prime is 415312141. The reversal of 415312121 is 121213514.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 415312121 - 210 = 415311097 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 415312093 and 415312102.
It is not an unprimeable number, because it can be changed into a prime (415312141) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 3341 + ... + 29013.
It is an arithmetic number, because the mean of its divisors is an integer number (59358288).
Almost surely, 2415312121 is an apocalyptic number.
It is an amenable number.
415312121 is a deficient number, since it is larger than the sum of its proper divisors (59554183).
415312121 is a wasteful number, since it uses less digits than its factorization.
415312121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27991.
The product of its digits is 240, while the sum is 20.
The square root of 415312121 is about 20379.2080562518. The cubic root of 415312121 is about 746.0905434596.
Adding to 415312121 its reverse (121213514), we get a palindrome (536525635).
The spelling of 415312121 in words is "four hundred fifteen million, three hundred twelve thousand, one hundred twenty-one".
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