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312442422222350 = 25278298491075729
BaseRepresentation
bin100011100001010100010101…
…1100101101101111000001110
31111222021012111121111020112202
41013002220223211231320032
5311423024040042103400
63024302022310001502
7122545135326364130
oct10702505345557016
91458235447436482
10312442422222350
11906100a5a95212
122b061527046292
131054526a281a44
14572241874b050
15261c5276254d5
hex11c2a2b96de0e

312442422222350 has 48 divisors (see below), whose sum is σ = 664164738132000. Its totient is φ = 107122887521280.

The previous prime is 312442422222349. The next prime is 312442422222389. The reversal of 312442422222350 is 53222224244213.

It is a super-2 number, since 2×3124424222223502 (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289909286 + ... + 290985014.

It is an arithmetic number, because the mean of its divisors is an integer number (13836765377750).

Almost surely, 2312442422222350 is an apocalyptic number.

312442422222350 is an abundant number, since it is smaller than the sum of its proper divisors (351722315909650).

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

312442422222350 is a wasteful number, since it uses less digits than its factorization.

312442422222350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905597 (or 1905592 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 312442422222350 its reverse (53222224244213), we get a palindrome (365664646466563).

The spelling of 312442422222350 in words is "three hundred twelve trillion, four hundred forty-two billion, four hundred twenty-two million, two hundred twenty-two thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 829849 1075729 1659698 2151458 4149245 5378645 5808943 7530103 8298490 10757290 11617886 15060206 20746225 26893225 29044715 37650515 41492450 53786450 58089430 75301030 145223575 188252575 290447150 376505150 892692634921 1785385269842 4463463174605 6248848444447 8926926349210 12497696888894 22317315873025 31244242222235 44634631746050 62488484444470 156221211111175 312442422222350