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312243103193 = 7371205571827
BaseRepresentation
bin1001000101100110010…
…00111010010111011001
31002211221202111002222112
410202303020322113121
520103433213300233
6355235325202105
731362450404630
oct4426310722731
91084852432875
10312243103193
111104701009aa
1250621700335
13235a145c878
1411181162517
1581c7450048
hex48b323a5d9

312243103193 has 8 divisors (see below), whose sum is σ = 366493835712. Its totient is φ = 260403514416.

The previous prime is 312243103157. The next prime is 312243103219. The reversal of 312243103193 is 391301342213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312243103193 - 230 = 311169361369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312243103493) by changing a digit.

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, 602785655 + ... + 602786172.

It is an arithmetic number, because the mean of its divisors is an integer number (45811729464).

Almost surely, 2312243103193 is an apocalyptic number.

It is an amenable number.

312243103193 is a deficient number, since it is larger than the sum of its proper divisors (54250732519).

312243103193 is a wasteful number, since it uses less digits than its factorization.

312243103193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205571871.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 312243103193 in words is "three hundred twelve billion, two hundred forty-three million, one hundred three thousand, one hundred ninety-three".

Divisors: 1 7 37 259 1205571827 8439002789 44606157599 312243103193