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42971580647593 = 13193531979249037
BaseRepresentation
bin10011100010101000110011…
…10011001100100010101001
312122011001011100011121020221
421301110121303030202221
521113021244121210333
6231220512134250041
712023410553561023
oct1161243163144251
9178131140147227
1042971580647593
1112768166010744
1249a021b4b6921
131ac92833508c0
14a87b9ac61013
154e7bc94b1d2d
hex271519ccc8a9

42971580647593 has 32 divisors (see below), whose sum is σ = 48875600188800. Its totient is φ = 37452846790656.

The previous prime is 42971580647587. The next prime is 42971580647627. The reversal of 42971580647593 is 39574608517924.

It is a cyclic number.

It is not a de Polignac number, because 42971580647593 - 225 = 42971547093161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42971580647573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172426471 + ... + 172675507.

It is an arithmetic number, because the mean of its divisors is an integer number (1527362505900).

It is a 1-persistent number, because it is pandigital, but 2⋅42971580647593 = 85943161295186 is not.

Almost surely, 242971580647593 is an apocalyptic number.

It is an amenable number.

42971580647593 is a deficient number, since it is larger than the sum of its proper divisors (5904019541207).

42971580647593 is a wasteful number, since it uses less digits than its factorization.

42971580647593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251401.

The product of its (nonzero) digits is 457228800, while the sum is 70.

The spelling of 42971580647593 in words is "forty-two trillion, nine hundred seventy-one billion, five hundred eighty million, six hundred forty-seven thousand, five hundred ninety-three".

Divisors: 1 13 19 247 353 1979 4589 6707 25727 37601 87191 249037 488813 698587 3237481 4731703 9081631 13273153 61512139 87910061 172550989 492844223 1142830793 1670291159 6406974899 9364040237 21713785067 121732523081 173974010719 2261662139347 3305506203661 42971580647593