Base | Representation |
---|---|
bin | 1011101000100101… |
… | …1010101111110111 |
3 | 22001122112102011222 |
4 | 2322021122233313 |
5 | 22343443443111 |
6 | 1233521220555 |
7 | 140251216511 |
oct | 27211325767 |
9 | 8048472158 |
10 | 3123031031 |
11 | 136296248a |
12 | 731a9175b |
13 | 3aa02cc73 |
14 | 218ab0bb1 |
15 | 1342977db |
hex | ba25abf7 |
3123031031 has 8 divisors (see below), whose sum is σ = 3166927680. Its totient is φ = 3079164672.
The previous prime is 3123031013. The next prime is 3123031097. The reversal of 3123031031 is 1301303213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-3123031031 is a prime.
It is a super-2 number, since 2×31230310312 = 19506645641177845922, 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 (3123031831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271250 + ... + 282528.
It is an arithmetic number, because the mean of its divisors is an integer number (395865960).
Almost surely, 23123031031 is an apocalyptic number.
3123031031 is a deficient number, since it is larger than the sum of its proper divisors (43896649).
3123031031 is a wasteful number, since it uses less digits than its factorization.
3123031031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15145.
The product of its (nonzero) digits is 162, while the sum is 17.
The square root of 3123031031 is about 55884.0856684620. The cubic root of 3123031031 is about 1461.7017485799.
Adding to 3123031031 its reverse (1301303213), we get a palindrome (4424334244).
The spelling of 3123031031 in words is "three billion, one hundred twenty-three million, thirty-one thousand, thirty-one".
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