| Base | Representation |
|---|---|
| bin | 111100010101001… |
| … | …111011101101000 |
| 3 | 2121112122011011210 |
| 4 | 330111033131220 |
| 5 | 4033110420240 |
| 6 | 244234553120 |
| 7 | 34040366154 |
| oct | 7425173550 |
| 9 | 2545564153 |
| 10 | 1012201320 |
| 11 | 47a3a7919 |
| 12 | 242b987a0 |
| 13 | 13191c9c0 |
| 14 | 98606064 |
| 15 | 5dce1780 |
| hex | 3c54f768 |
1012201320 has 128 divisors (see below), whose sum is σ = 3292611840. Its totient is φ = 247449600.
The previous prime is 1012201277. The next prime is 1012201321. The reversal of 1012201320 is 231022101.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 1012201296 and 1012201305.
It is not an unprimeable number, because it can be changed into a prime (1012201321) 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 31 ways as a sum of consecutive naturals, for example, 233412 + ... + 237708.
It is an arithmetic number, because the mean of its divisors is an integer number (25723530).
Almost surely, 21012201320 is an apocalyptic number.
1012201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1012201320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646305920).
1012201320 is an abundant number, since it is smaller than the sum of its proper divisors (2280410520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1012201320 is a wasteful number, since it uses less digits than its factorization.
1012201320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4475 (or 4471 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 1012201320 is about 31815.1115038121. Note that the first 3 decimals coincide. The cubic root of 1012201320 is about 1004.0506765318.
Adding to 1012201320 its reverse (231022101), we get a palindrome (1243223421).
The spelling of 1012201320 in words is "one billion, twelve million, two hundred one thousand, three hundred twenty".
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