Base | Representation |
---|---|
bin | 1110011001101… |
… | …11001110001110 |
3 | 22102022220111110 |
4 | 13030313032032 |
5 | 221411444210 |
6 | 15553232450 |
7 | 2664613554 |
oct | 714671616 |
9 | 272286443 |
10 | 120812430 |
11 | 62217192 |
12 | 34562726 |
13 | 1c04c95b |
14 | 1208bbd4 |
15 | a916420 |
hex | 733738e |
120812430 has 32 divisors (see below), whose sum is σ = 290628000. Its totient is φ = 32141312.
The previous prime is 120812429. The next prime is 120812453. The reversal of 120812430 is 34218021.
It is a junction number, because it is equal to n+sod(n) for n = 120812397 and 120812406.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8986 + ... + 17954.
It is an arithmetic number, because the mean of its divisors is an integer number (9082125).
Almost surely, 2120812430 is an apocalyptic number.
120812430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
120812430 is an abundant number, since it is smaller than the sum of its proper divisors (169815570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120812430 is a wasteful number, since it uses less digits than its factorization.
120812430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9428.
The product of its (nonzero) digits is 384, while the sum is 21.
The square root of 120812430 is about 10991.4707842035. The cubic root of 120812430 is about 494.3530370474.
The spelling of 120812430 in words is "one hundred twenty million, eight hundred twelve thousand, four hundred thirty".
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