Base | Representation |
---|---|
bin | 10010101011110010… |
… | …10110001101011100 |
3 | 221220002011011211120 |
4 | 21111321112031130 |
5 | 131020420444012 |
6 | 4335211450540 |
7 | 503402233503 |
oct | 112571261534 |
9 | 27802134746 |
10 | 10031031132 |
11 | 428828a181 |
12 | 1b3b456a50 |
13 | c3b2638a5 |
14 | 6b231d83a |
15 | 3da98c58c |
hex | 255e5635c |
10031031132 has 12 divisors (see below), whose sum is σ = 23405739336. Its totient is φ = 3343677040.
The previous prime is 10031031107. The next prime is 10031031139. The reversal of 10031031132 is 23113013001.
It is a tau number, because it is divible by the number of its divisors (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10031031139) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417959619 + ... + 417959642.
It is an arithmetic number, because the mean of its divisors is an integer number (1950478278).
Almost surely, 210031031132 is an apocalyptic number.
10031031132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
10031031132 is an abundant number, since it is smaller than the sum of its proper divisors (13374708204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10031031132 is a wasteful number, since it uses less digits than its factorization.
10031031132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 835919268 (or 835919266 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 10031031132 its reverse (23113013001), we get a palindrome (33144044133).
The spelling of 10031031132 in words is "ten billion, thirty-one million, thirty-one thousand, one hundred thirty-two".
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