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312313111 = 1152354287
BaseRepresentation
bin10010100111011…
…000010100010111
3210202200011001021
4102213120110113
51114423004421
650553542011
710511421565
oct2247302427
9722604037
10312313111
11150324510
1288714907
134c91c476
142d69aa35
151c642341
hex129d8517

312313111 has 8 divisors (see below), whose sum is σ = 341362944. Its totient is φ = 283372920.

The previous prime is 312313097. The next prime is 312313121. The reversal of 312313111 is 111313213.

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 312313111 - 215 = 312280343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312313121) 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, 21391 + ... + 32896.

It is an arithmetic number, because the mean of its divisors is an integer number (42670368).

Almost surely, 2312313111 is an apocalyptic number.

312313111 is a deficient number, since it is larger than the sum of its proper divisors (29049833).

312313111 is a wasteful number, since it uses less digits than its factorization.

312313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54821.

The product of its digits is 54, while the sum is 16.

The square root of 312313111 is about 17672.3827199390. The cubic root of 312313111 is about 678.4690985605.

Adding to 312313111 its reverse (111313213), we get a palindrome (423626324).

The spelling of 312313111 in words is "three hundred twelve million, three hundred thirteen thousand, one hundred eleven".

Divisors: 1 11 523 5753 54287 597157 28392101 312313111