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312530134 = 2723189083
BaseRepresentation
bin10010101000001…
…101010011010110
3210210002011202011
4102220031103112
51120001431014
651002334434
710513314400
oct2250152326
9723064664
10312530134
11150462574
12887ba41a
134c997197
142d715b70
151c6867c4
hex12a0d4d6

312530134 has 12 divisors (see below), whose sum is σ = 545333364. Its totient is φ = 133941444.

The previous prime is 312530117. The next prime is 312530171. The reversal of 312530134 is 431035213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1594444 + ... + 1594639.

It is an arithmetic number, because the mean of its divisors is an integer number (45444447).

Almost surely, 2312530134 is an apocalyptic number.

312530134 is a deficient number, since it is larger than the sum of its proper divisors (232803230).

312530134 is a wasteful number, since it uses less digits than its factorization.

312530134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189099 (or 3189092 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 312530134 is about 17678.5218273474. The cubic root of 312530134 is about 678.6262157838.

Adding to 312530134 its reverse (431035213), we get a palindrome (743565347).

The spelling of 312530134 in words is "three hundred twelve million, five hundred thirty thousand, one hundred thirty-four".

Divisors: 1 2 7 14 49 98 3189083 6378166 22323581 44647162 156265067 312530134