Base | Representation |
---|---|
bin | 111101011101110… |
… | …111110110101011 |
3 | 2122212110110212222 |
4 | 331131313312223 |
5 | 4102444204011 |
6 | 250155024255 |
7 | 34361255624 |
oct | 7535676653 |
9 | 2585413788 |
10 | 1031241131 |
11 | 48a1217a8 |
12 | 24943b08b |
13 | 13585806b |
14 | 9ad60a4b |
15 | 60802ddb |
hex | 3d777dab |
1031241131 has 32 divisors (see below), whose sum is σ = 1203336000. Its totient is φ = 877105152.
The previous prime is 1031241109. The next prime is 1031241137. The reversal of 1031241131 is 1311421301.
It is a cyclic number.
It is not a de Polignac number, because 1031241131 - 26 = 1031241067 is a prime.
It is a super-2 number, since 2×10312411312 = 2126916540532318322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1031241137) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 833045 + ... + 834281.
It is an arithmetic number, because the mean of its divisors is an integer number (37604250).
Almost surely, 21031241131 is an apocalyptic number.
1031241131 is a deficient number, since it is larger than the sum of its proper divisors (172094869).
1031241131 is a wasteful number, since it uses less digits than its factorization.
1031241131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1391.
The product of its (nonzero) digits is 72, while the sum is 17.
The square root of 1031241131 is about 32112.9433562232. The cubic root of 1031241131 is about 1010.3071088436.
Adding to 1031241131 its reverse (1311421301), we get a palindrome (2342662432).
The spelling of 1031241131 in words is "one billion, thirty-one million, two hundred forty-one thousand, one hundred thirty-one".
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