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42687295587 = 3216329098361
BaseRepresentation
bin100111110000010111…
…000111000001100011
311002011221200022000200
4213300113013001203
51144410421424322
631335452520243
73040555011546
oct476027070143
9132157608020
1042687295587
1117115957a92
128333a80083
134043a3b4b1
1420cd45485d
15119c8ac8ac
hex9f05c7063

42687295587 has 12 divisors (see below), whose sum is σ = 62037707784. Its totient is φ = 28283605920.

The previous prime is 42687295583. The next prime is 42687295597. The reversal of 42687295587 is 78559278624.

42687295587 is a `hidden beast` number, since 4 + 2 + 6 + 8 + 72 + 9 + 558 + 7 = 666.

It is not a de Polignac number, because 42687295587 - 22 = 42687295583 is a prime.

It is a super-3 number, since 3×426872955873 (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42687295583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14547714 + ... + 14550647.

It is an arithmetic number, because the mean of its divisors is an integer number (5169808982).

Almost surely, 242687295587 is an apocalyptic number.

42687295587 is a deficient number, since it is larger than the sum of its proper divisors (19350412197).

42687295587 is a wasteful number, since it uses less digits than its factorization.

42687295587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29098530 (or 29098527 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 42687295587 in words is "forty-two billion, six hundred eighty-seven million, two hundred ninety-five thousand, five hundred eighty-seven".

Divisors: 1 3 9 163 489 1467 29098361 87295083 261885249 4743032843 14229098529 42687295587