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312034345 = 5729307423
BaseRepresentation
bin10010100110010…
…100010000101001
3210202010222122121
4102212110100221
51114340044340
650543551241
710506151060
oct2246242051
9722128577
10312034345
11150154027
12885bb521
134c85260c
142d6271d7
151c5d994a
hex12994429

312034345 has 16 divisors (see below), whose sum is σ = 442690560. Its totient is φ = 206587584.

The previous prime is 312034319. The next prime is 312034367. The reversal of 312034345 is 543430213.

It is not a de Polignac number, because 312034345 - 213 = 312026153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152697 + ... + 154726.

It is an arithmetic number, because the mean of its divisors is an integer number (27668160).

Almost surely, 2312034345 is an apocalyptic number.

312034345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312034345 is a deficient number, since it is larger than the sum of its proper divisors (130656215).

312034345 is a wasteful number, since it uses less digits than its factorization.

312034345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307464.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 312034345 is about 17664.4939072706. The cubic root of 312034345 is about 678.2671746891.

Adding to 312034345 its reverse (543430213), we get a palindrome (855464558).

The spelling of 312034345 in words is "three hundred twelve million, thirty-four thousand, three hundred forty-five".

Divisors: 1 5 7 29 35 145 203 1015 307423 1537115 2151961 8915267 10759805 44576335 62406869 312034345