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312030003023 = 2411294730303
BaseRepresentation
bin1001000101001100110…
…11111111111101001111
31002211101220111111111122
410202212123333331033
520103014140044043
6355202233511155
731354252156424
oct4424633777517
91084356444448
10312030003023
11110370890662
12505822724bb
13235692698ab
1411160b2dd4b
1581b38a9368
hex48a66fff4f

312030003023 has 4 divisors (see below), whose sum is σ = 313324733568. Its totient is φ = 310735272480.

The previous prime is 312030003013. The next prime is 312030003049. The reversal of 312030003023 is 320300030213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320300030213 = 1916857896327.

It is a cyclic number.

It is not a de Polignac number, because 312030003023 - 228 = 311761567567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312030002992 and 312030003010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312030003013) 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, 647364911 + ... + 647365392.

It is an arithmetic number, because the mean of its divisors is an integer number (78331183392).

Almost surely, 2312030003023 is an apocalyptic number.

312030003023 is a deficient number, since it is larger than the sum of its proper divisors (1294730545).

312030003023 is a wasteful number, since it uses less digits than its factorization.

312030003023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294730544.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 312030003023 its reverse (320300030213), we get a palindrome (632330033236).

The spelling of 312030003023 in words is "three hundred twelve billion, thirty million, three thousand, twenty-three".

Divisors: 1 241 1294730303 312030003023