Base | Representation |
---|---|
bin | 100110100110… |
… | …111001101100 |
3 | 201001012010220 |
4 | 212212321230 |
5 | 10042331222 |
6 | 1000531340 |
7 | 152011512 |
oct | 46467154 |
9 | 21035126 |
10 | 10120812 |
11 | 5792a09 |
12 | 3480b50 |
13 | 2134860 |
14 | 14b64b2 |
15 | d4db5c |
hex | 9a6e6c |
10120812 has 24 divisors (see below), whose sum is σ = 25432176. Its totient is φ = 3114048.
The previous prime is 10120807. The next prime is 10120829. The reversal of 10120812 is 21802101.
It is a junction number, because it is equal to n+sod(n) for n = 10120791 and 10120800.
It is an unprimeable number.
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, 32283 + ... + 32594.
It is an arithmetic number, because the mean of its divisors is an integer number (1059674).
Almost surely, 210120812 is an apocalyptic number.
10120812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
10120812 is an abundant number, since it is smaller than the sum of its proper divisors (15311364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10120812 is a wasteful number, since it uses less digits than its factorization.
10120812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64897 (or 64895 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
The square root of 10120812 is about 3181.3223665639. The cubic root of 10120812 is about 216.3076035748.
Adding to 10120812 its reverse (21802101), we get a palindrome (31922913).
It can be divided in two parts, 101 and 20812, that multiplied together give a palindrome (2102012).
The spelling of 10120812 in words is "ten million, one hundred twenty thousand, eight hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •