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312112441 = 11313720161
BaseRepresentation
bin10010100110100…
…111010100111001
3210202021221210001
4102212213110321
51114400044231
650545353001
710506624544
oct2246472471
9722257701
10312112441
111501a7773
1288638761
134c87c024
142d64785b
151c602b61
hex129a7539

312112441 has 8 divisors (see below), whose sum is σ = 317188584. Its totient is φ = 307077120.

The previous prime is 312112429. The next prime is 312112457. The reversal of 312112441 is 144211213.

It can be written as a sum of positive squares in 4 ways, for example, as 10916416 + 301196025 = 3304^2 + 17355^2 .

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 312112441 - 221 = 310015289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312112421) 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, 5401 + ... + 25561.

It is an arithmetic number, because the mean of its divisors is an integer number (39648573).

Almost surely, 2312112441 is an apocalyptic number.

It is an amenable number.

312112441 is a deficient number, since it is larger than the sum of its proper divisors (5076143).

312112441 is a wasteful number, since it uses less digits than its factorization.

312112441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20411.

The product of its digits is 192, while the sum is 19.

The square root of 312112441 is about 17666.7043049914. The cubic root of 312112441 is about 678.3237555704.

Adding to 312112441 its reverse (144211213), we get a palindrome (456323654).

The spelling of 312112441 in words is "three hundred twelve million, one hundred twelve thousand, four hundred forty-one".

Divisors: 1 113 137 15481 20161 2278193 2762057 312112441