Base | Representation |
---|---|
bin | 1001000101001100110… |
… | …11111111111101010111 |
3 | 1002211101220111111111221 |
4 | 10202212123333331113 |
5 | 20103014140044111 |
6 | 355202233511211 |
7 | 31354252156435 |
oct | 4424633777527 |
9 | 1084356444457 |
10 | 312030003031 |
11 | 11037089066a |
12 | 50582272507 |
13 | 235692698b6 |
14 | 11160b2dd55 |
15 | 81b38a9371 |
hex | 48a66fff57 |
312030003031 has 8 divisors (see below), whose sum is σ = 315936157824. Its totient is φ = 308147450880.
The previous prime is 312030003013. The next prime is 312030003049. The reversal of 312030003031 is 130300030213.
It is an interprime number because it is at equal distance from previous prime (312030003013) and next prime (312030003049).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 312030003031 - 29 = 312030002519 is a prime.
It is a super-2 number, since 2×3120300030312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 312030002996 and 312030003014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312030000031) 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, 5874055 + ... + 5926936.
It is an arithmetic number, because the mean of its divisors is an integer number (39492019728).
Almost surely, 2312030003031 is an apocalyptic number.
312030003031 is a deficient number, since it is larger than the sum of its proper divisors (3906154793).
312030003031 is a wasteful number, since it uses less digits than its factorization.
312030003031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11801321.
The product of its (nonzero) digits is 162, while the sum is 16.
Adding to 312030003031 its reverse (130300030213), we get a palindrome (442330033244).
The spelling of 312030003031 in words is "three hundred twelve billion, thirty million, three thousand, thirty-one".
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