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312317111 = 378639781
BaseRepresentation
bin10010100111011…
…001010010110111
3210202200100112102
4102213121102313
51114423121421
650554012315
710511436341
oct2247312267
9722610472
10312317111
11150327517
128871709b
134c921232
142d69c291
151c64360b
hex129d94b7

312317111 has 8 divisors (see below), whose sum is σ = 321162624. Its totient is φ = 303492960.

The previous prime is 312317059. The next prime is 312317147. The reversal of 312317111 is 111713213.

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 312317111 - 226 = 245208247 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 (312317171) 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, 27041 + ... + 36821.

It is an arithmetic number, because the mean of its divisors is an integer number (40145328).

Almost surely, 2312317111 is an apocalyptic number.

312317111 is a deficient number, since it is larger than the sum of its proper divisors (8845513).

312317111 is an equidigital number, since it uses as much as digits as its factorization.

312317111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681.

The product of its digits is 126, while the sum is 20.

The square root of 312317111 is about 17672.4958905074. The cubic root of 312317111 is about 678.4719950819.

The spelling of 312317111 in words is "three hundred twelve million, three hundred seventeen thousand, one hundred eleven".

Divisors: 1 37 863 9781 31931 361897 8441003 312317111