Base | Representation |
---|---|
bin | 1110010100100… |
… | …11000110110111 |
3 | 22101001202101121 |
4 | 13022103012313 |
5 | 221223441330 |
6 | 15531004411 |
7 | 2656114006 |
oct | 712230667 |
9 | 271052347 |
10 | 120140215 |
11 | 618a8138 |
12 | 34299707 |
13 | 1bb759b0 |
14 | 11d54c3d |
15 | a83217a |
hex | 72931b7 |
120140215 has 8 divisors (see below), whose sum is σ = 155258208. Its totient is φ = 88718880.
The previous prime is 120140203. The next prime is 120140219. The reversal of 120140215 is 512041021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 120140215 - 25 = 120140183 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120140219) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924091 + ... + 924220.
It is an arithmetic number, because the mean of its divisors is an integer number (19407276).
Almost surely, 2120140215 is an apocalyptic number.
120140215 is a deficient number, since it is larger than the sum of its proper divisors (35117993).
120140215 is a wasteful number, since it uses less digits than its factorization.
120140215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1848329.
The product of its (nonzero) digits is 80, while the sum is 16.
The square root of 120140215 is about 10960.8491915545. The cubic root of 120140215 is about 493.4344511600.
Adding to 120140215 its reverse (512041021), we get a palindrome (632181236).
The spelling of 120140215 in words is "one hundred twenty million, one hundred forty thousand, two hundred fifteen".
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