Base | Representation |
---|---|
bin | 111100011001001… |
… | …000101101010111 |
3 | 2121121120000121022 |
4 | 330121020231113 |
5 | 4033341102411 |
6 | 244312511355 |
7 | 34052150450 |
oct | 7431105527 |
9 | 2547500538 |
10 | 1013222231 |
11 | 47aa3494a |
12 | 2433ab55b |
13 | 131bb95a8 |
14 | 987d0127 |
15 | 5de43edb |
hex | 3c648b57 |
1013222231 has 16 divisors (see below), whose sum is σ = 1171737600. Its totient is φ = 858211200.
The previous prime is 1013222167. The next prime is 1013222239. The reversal of 1013222231 is 1322223101.
It is not a de Polignac number, because 1013222231 - 26 = 1013222167 is a prime.
It is a super-2 number, since 2×10132222312 = 2053238578785234722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1013222239) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207935 + ... + 212751.
It is an arithmetic number, because the mean of its divisors is an integer number (73233600).
Almost surely, 21013222231 is an apocalyptic number.
1013222231 is a deficient number, since it is larger than the sum of its proper divisors (158515369).
1013222231 is a wasteful number, since it uses less digits than its factorization.
1013222231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5174.
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 1013222231 is about 31831.1518955881. The cubic root of 1013222231 is about 1004.3881265136.
Adding to 1013222231 its reverse (1322223101), we get a palindrome (2335445332).
The spelling of 1013222231 in words is "one billion, thirteen million, two hundred twenty-two thousand, two hundred thirty-one".
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