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312123414 = 23191272359
BaseRepresentation
bin10010100110101…
…010000000010110
3210202022111211110
4102212222000112
51114400422124
650545515450
710510001541
oct2246520026
9722274743
10312123414
11150204a39
1288642b86
134c884015
142d64b858
151c606029
hex129aa016

312123414 has 16 divisors (see below), whose sum is σ = 627517440. Its totient is φ = 103496040.

The previous prime is 312123373. The next prime is 312123419. The reversal of 312123414 is 414321213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312123419) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 135034 + ... + 137325.

It is an arithmetic number, because the mean of its divisors is an integer number (39219840).

Almost surely, 2312123414 is an apocalyptic number.

312123414 is an abundant number, since it is smaller than the sum of its proper divisors (315394026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312123414 is a wasteful number, since it uses less digits than its factorization.

312123414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272555.

The product of its digits is 576, while the sum is 21.

The square root of 312123414 is about 17667.0148582040. The cubic root of 312123414 is about 678.3317047989.

Adding to 312123414 its reverse (414321213), we get a palindrome (726444627).

The spelling of 312123414 in words is "three hundred twelve million, one hundred twenty-three thousand, four hundred fourteen".

Divisors: 1 2 3 6 191 382 573 1146 272359 544718 817077 1634154 52020569 104041138 156061707 312123414