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312130415323 = 1791743745337
BaseRepresentation
bin1001000101011000110…
…11000010101011011011
31002211122220102222021201
410202230123002223123
520103220341242243
6355220222015031
731356611516566
oct4425433025333
91084586388251
10312130415323
11110412533931
12505aba17477
1323583cc5c5c
14111701cb4dd
1581bc5e104d
hex48ac6c2adb

312130415323 has 4 divisors (see below), whose sum is σ = 313874160840. Its totient is φ = 310386669808.

The previous prime is 312130415299. The next prime is 312130415341. The reversal of 312130415323 is 323514031213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323514031213 = 911355119683.

It is a cyclic number.

It is not a de Polignac number, because 312130415323 - 237 = 174691461851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312130415291 and 312130415300.

It is not an unprimeable number, because it can be changed into a prime (312130410323) 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 3 ways as a sum of consecutive naturals, for example, 871872490 + ... + 871872847.

It is an arithmetic number, because the mean of its divisors is an integer number (78468540210).

Almost surely, 2312130415323 is an apocalyptic number.

312130415323 is a deficient number, since it is larger than the sum of its proper divisors (1743745517).

312130415323 is a wasteful number, since it uses less digits than its factorization.

312130415323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743745516.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 312130415323 its reverse (323514031213), we get a palindrome (635644446536).

The spelling of 312130415323 in words is "three hundred twelve billion, one hundred thirty million, four hundred fifteen thousand, three hundred twenty-three".

Divisors: 1 179 1743745337 312130415323