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312142444210 = 25111727944713
BaseRepresentation
bin1001000101011010010…
…00111011011010110010
31002211200202002002211001
410202231020323122302
520103231431203320
6355221331512214
731360115666332
oct4425510733262
91084622062731
10312142444210
111104192aa363
12505b3a5866a
132358664813c
1411171a3d0c2
1581bd6ba20a
hex48ad23b6b2

312142444210 has 16 divisors (see below), whose sum is σ = 562359424536. Its totient is φ = 124745194368.

The previous prime is 312142444183. The next prime is 312142444231. The reversal of 312142444210 is 12444241213.

It can be written as a sum of positive squares in 4 ways, for example, as 167633743761 + 144508700449 = 409431^2 + 380143^2 .

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, 13961187 + ... + 13983526.

Almost surely, 2312142444210 is an apocalyptic number.

312142444210 is a deficient number, since it is larger than the sum of its proper divisors (250216980326).

312142444210 is a wasteful number, since it uses less digits than its factorization.

312142444210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27945837.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 312142444210 its reverse (12444241213), we get a palindrome (324586685423).

The spelling of 312142444210 in words is "three hundred twelve billion, one hundred forty-two million, four hundred forty-four thousand, two hundred ten".

Divisors: 1 2 5 10 1117 2234 5585 11170 27944713 55889426 139723565 279447130 31214244421 62428488842 156071222105 312142444210