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312368411213824 = 21572533670669
BaseRepresentation
bin100011100000110001111000…
…0001100001000000000000000
31111222000010110122201110100211
41013001203300030020000000
5311420321001232320244
63024204022253123504
7122536605266241100
oct10701436014100000
91458003418643324
10312368411213824
1190591776780069
122b04b110a89594
131053b2a3b60084
14571c9d7157200
15261a644d17934
hex11c18f0308000

312368411213824 has 192 divisors, whose sum is σ = 740435549309100. Its totient is φ = 131346250334208.

The previous prime is 312368411213821. The next prime is 312368411213857. The reversal of 312368411213824 is 428312114863213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 308945023156224 + 3423388057600 = 17576832^2 + 1850240^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (312368411213821) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 83263162 + ... + 86933830.

Almost surely, 2312368411213824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312368411213824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370217774654550).

312368411213824 is an abundant number, since it is smaller than the sum of its proper divisors (428067138095276).

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

312368411213824 is an frugal number, since it uses more digits than its factorization.

312368411213824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670766 (or 3670731 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

The spelling of 312368411213824 in words is "three hundred twelve trillion, three hundred sixty-eight billion, four hundred eleven million, two hundred thirteen thousand, eight hundred twenty-four".