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312400323 = 32277125311
BaseRepresentation
bin10010100111101…
…101100111000011
3210202211120200100
4102213231213003
51114433302243
650555453443
710512234054
oct2247554703
9722746610
10312400323
11150383a94
1288757283
134c950081
142d6c072b
151c65d0d3
hex129ed9c3

312400323 has 12 divisors (see below), whose sum is σ = 452877568. Its totient is φ = 207513360.

The previous prime is 312400321. The next prime is 312400331. The reversal of 312400323 is 323004213.

It is not a de Polignac number, because 312400323 - 21 = 312400321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312400296 and 312400305.

It is not an unprimeable number, because it can be changed into a prime (312400321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60163 + ... + 65148.

Almost surely, 2312400323 is an apocalyptic number.

312400323 is a deficient number, since it is larger than the sum of its proper divisors (140477245).

312400323 is a wasteful number, since it uses less digits than its factorization.

312400323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125594 (or 125591 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 312400323 is about 17674.8500135079. The cubic root of 312400323 is about 678.5322458082.

Adding to 312400323 its reverse (323004213), we get a palindrome (635404536).

The spelling of 312400323 in words is "three hundred twelve million, four hundred thousand, three hundred twenty-three".

Divisors: 1 3 9 277 831 2493 125311 375933 1127799 34711147 104133441 312400323