Base | Representation |
---|---|
bin | 101101011100101001001… |
… | …000001010111110000010 |
3 | 102001120100101101221220221 |
4 | 231130221020022332002 |
5 | 402132133043412010 |
6 | 10350425141053254 |
7 | 441432050314120 |
oct | 55345110127602 |
9 | 12046311357827 |
10 | 3123131232130 |
11 | aa4570184948 |
12 | 42534a3b722a |
13 | 198682659040 |
14 | ab236046910 |
15 | 5638e561dda |
hex | 2d72920af82 |
3123131232130 has 128 divisors (see below), whose sum is σ = 7334886182400. Its totient is φ = 929140346880.
The previous prime is 3123131232121. The next prime is 3123131232139. The reversal of 3123131232130 is 312321313213.
It is an interprime number because it is at equal distance from previous prime (3123131232121) and next prime (3123131232139).
It is a junction number, because it is equal to n+sod(n) for n = 3123131232095 and 3123131232104.
It is not an unprimeable number, because it can be changed into a prime (3123131232139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12577921 + ... + 12823819.
It is an arithmetic number, because the mean of its divisors is an integer number (57303798300).
Almost surely, 23123131232130 is an apocalyptic number.
3123131232130 is an abundant number, since it is smaller than the sum of its proper divisors (4211754950270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3123131232130 is a wasteful number, since it uses less digits than its factorization.
3123131232130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246764.
The product of its (nonzero) digits is 1944, while the sum is 25.
Adding to 3123131232130 its reverse (312321313213), we get a palindrome (3435452545343).
The spelling of 3123131232130 in words is "three trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred thirty".
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