Base | Representation |
---|---|
bin | 111011101010101… |
… | …000100111000011 |
3 | 2120202121200221010 |
4 | 323222220213003 |
5 | 4022231012011 |
6 | 243155332003 |
7 | 33543430011 |
oct | 7352504703 |
9 | 2522550833 |
10 | 1001032131 |
11 | 474069290 |
12 | 23b2b1003 |
13 | 12c50bc08 |
14 | 96d398b1 |
15 | 5cd371a6 |
hex | 3baa89c3 |
1001032131 has 48 divisors (see below), whose sum is σ = 1583353728. Its totient is φ = 557491200.
The previous prime is 1001032117. The next prime is 1001032139. The reversal of 1001032131 is 1312301001.
It is not a de Polignac number, because 1001032131 - 25 = 1001032099 is a prime.
It is a super-2 number, since 2×10010321312 = 2004130654588802322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1001032139) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 408871 + ... + 411311.
It is an arithmetic number, because the mean of its divisors is an integer number (32986536).
Almost surely, 21001032131 is an apocalyptic number.
1001032131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1001032131 is a deficient number, since it is larger than the sum of its proper divisors (582321597).
1001032131 is a wasteful number, since it uses less digits than its factorization.
1001032131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2532 (or 2515 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 1001032131 is about 31639.0918169280. The cubic root of 1001032131 is about 1000.3439253684.
Adding to 1001032131 its reverse (1312301001), we get a palindrome (2313333132).
The spelling of 1001032131 in words is "one billion, one million, thirty-two thousand, one hundred thirty-one".
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