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312344125 = 532498753
BaseRepresentation
bin10010100111011…
…111111000111101
3210202201201120221
4102213133320331
51114430003000
650554341341
710511611162
oct2247377075
9722651527
10312344125
11150345845
128872a851
134c930612
142d6a8069
151c64b61a
hex129dfe3d

312344125 has 8 divisors (see below), whose sum is σ = 389805624. Its totient is φ = 249875200.

The previous prime is 312344119. The next prime is 312344141. The reversal of 312344125 is 521443213.

It can be written as a sum of positive squares in 4 ways, for example, as 715716 + 311628409 = 846^2 + 17653^2 .

It is not a de Polignac number, because 312344125 - 215 = 312311357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312344125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249252 + ... + 1249501.

It is an arithmetic number, because the mean of its divisors is an integer number (48725703).

Almost surely, 2312344125 is an apocalyptic number.

It is an amenable number.

312344125 is a deficient number, since it is larger than the sum of its proper divisors (77461499).

312344125 is an equidigital number, since it uses as much as digits as its factorization.

312344125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498768 (or 2498758 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 312344125 is about 17673.2601689671. The cubic root of 312344125 is about 678.4915560915.

Adding to 312344125 its reverse (521443213), we get a palindrome (833787338).

The spelling of 312344125 in words is "three hundred twelve million, three hundred forty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 2498753 12493765 62468825 312344125