Search a number
-
+
312112033331 = 789500982397
BaseRepresentation
bin1001000101010110101…
…00111010111000110011
31002211121121212001221012
410202223110322320303
520103201140031311
6355214324021135
731356266340020
oct4425324727063
91084547761835
10312112033331
111104031191aa
12505a58317ab
132358025b137
141116b9a4547
1581babae78b
hex48ab53ae33

312112033331 has 8 divisors (see below), whose sum is σ = 360707326560. Its totient is φ = 264518705088.

The previous prime is 312112033313. The next prime is 312112033333. The reversal of 312112033331 is 133330211213.

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 312112033331 - 234 = 294932164147 is a prime.

It is a super-2 number, since 2×3121120333312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312112033297 and 312112033306.

It is not an unprimeable number, because it can be changed into a prime (312112033333) 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, 250490576 + ... + 250491821.

It is an arithmetic number, because the mean of its divisors is an integer number (45088415820).

Almost surely, 2312112033331 is an apocalyptic number.

312112033331 is a deficient number, since it is larger than the sum of its proper divisors (48595293229).

312112033331 is an equidigital number, since it uses as much as digits as its factorization.

312112033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500982493.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 312112033331 its reverse (133330211213), we get a palindrome (445442244544).

The spelling of 312112033331 in words is "three hundred twelve billion, one hundred twelve million, thirty-three thousand, three hundred thirty-one".

Divisors: 1 7 89 623 500982397 3506876779 44587433333 312112033331