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1993570475 = 52132312491
BaseRepresentation
bin111011011010011…
…0111100010101011
312010221020212120112
41312310313202223
513040323223400
6525453044535
7100255032551
oct16664674253
95127225515
101993570475
11933356006
1247778674b
1325a035a00
1414caa3bd1
15ba042835
hex76d378ab

1993570475 has 54 divisors (see below), whose sum is σ = 2771578188. Its totient is φ = 1421784000.

The previous prime is 1993570441. The next prime is 1993570477. The reversal of 1993570475 is 5740753991.

It is not a de Polignac number, because 1993570475 - 216 = 1993504939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1993570477) 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 53 ways as a sum of consecutive naturals, for example, 4059980 + ... + 4060470.

It is an arithmetic number, because the mean of its divisors is an integer number (51325522).

Almost surely, 21993570475 is an apocalyptic number.

1993570475 is a deficient number, since it is larger than the sum of its proper divisors (778007713).

1993570475 is a wasteful number, since it uses less digits than its factorization.

1993570475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 50.

The square root of 1993570475 is about 44649.4174094131. The cubic root of 1993570475 is about 1258.5694848903.

The spelling of 1993570475 in words is "one billion, nine hundred ninety-three million, five hundred seventy thousand, four hundred seventy-five".

Divisors: 1 5 13 25 31 65 155 169 325 403 491 775 845 961 2015 2455 4225 4805 5239 6383 10075 12275 12493 15221 24025 26195 31915 62465 76105 82979 130975 159575 162409 197873 312325 380525 414895 471851 812045 989365 2074475 2359255 2572349 4060225 4946825 6134063 11796275 12861745 30670315 64308725 79742819 153351575 398714095 1993570475