Base | Representation |
---|---|
bin | 111100110111010… |
… | …011110111000110 |
3 | 2122011102220002020 |
4 | 330313103313012 |
5 | 4042402212410 |
6 | 245154224010 |
7 | 34206323616 |
oct | 7467236706 |
9 | 2564386066 |
10 | 1021132230 |
11 | 484447838 |
12 | 245b85006 |
13 | 133728a71 |
14 | 9988ca46 |
15 | 5e9a7a70 |
hex | 3cdd3dc6 |
1021132230 has 32 divisors (see below), whose sum is σ = 2454586848. Its totient is φ = 271872000.
The previous prime is 1021132207. The next prime is 1021132237. The reversal of 1021132230 is 322311201.
It is a super-2 number, since 2×10211322302 = 2085422062289545800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1021132237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7321 + ... + 45780.
It is an arithmetic number, because the mean of its divisors is an integer number (76705839).
Almost surely, 21021132230 is an apocalyptic number.
1021132230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1021132230 is an abundant number, since it is smaller than the sum of its proper divisors (1433454618).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1021132230 is a wasteful number, since it uses less digits than its factorization.
1021132230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53752.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1021132230 is about 31955.1596772728. The cubic root of 1021132230 is about 1006.9950321025.
Adding to 1021132230 its reverse (322311201), we get a palindrome (1343443431).
The spelling of 1021132230 in words is "one billion, twenty-one million, one hundred thirty-two thousand, two hundred thirty".
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