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312104343 = 31722726959
BaseRepresentation
bin10010100110100…
…101010110010111
3210202021112200010
4102212211112113
51114344314333
650545251303
710506562125
oct2246452627
9722245603
10312104343
111501a1681
1288633b33
134c878435
142d644915
151c600563
hex129a5597

312104343 has 16 divisors (see below), whose sum is σ = 442575360. Its totient is φ = 194960256.

The previous prime is 312104339. The next prime is 312104357. The reversal of 312104343 is 343401213.

It is not a de Polignac number, because 312104343 - 22 = 312104339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312104323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (27660960).

Almost surely, 2312104343 is an apocalyptic number.

312104343 is a deficient number, since it is larger than the sum of its proper divisors (130471017).

312104343 is a wasteful number, since it uses less digits than its factorization.

312104343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27206.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 312104343 is about 17666.4751153138. The cubic root of 312104343 is about 678.3178889739.

Adding to 312104343 its reverse (343401213), we get a palindrome (655505556).

It can be divided in two parts, 31210 and 4343, that added together give a palindrome (35553).

The spelling of 312104343 in words is "three hundred twelve million, one hundred four thousand, three hundred forty-three".

Divisors: 1 3 17 51 227 681 3859 11577 26959 80877 458303 1374909 6119693 18359079 104034781 312104343