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87575338997 = 8914913674831
BaseRepresentation
bin101000110001111100…
…1011001111111110101
322101001021110011111222
41101203321121333311
52413323241321442
6104122003240125
76220125046016
oct1214371317765
9271037404458
1087575338997
113415aaa5423
1214b80979045
1383486b0823
14434ac9d00d
1524285838d2
hex1463e59ff5

87575338997 has 16 divisors (see below), whose sum is σ = 89237376000. Its totient is φ = 85929486720.

The previous prime is 87575338943. The next prime is 87575339003. The reversal of 87575338997 is 79983357578.

It is a cyclic number.

It is not a de Polignac number, because 87575338997 - 26 = 87575338933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87575338997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87575338597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18125372 + ... + 18130202.

It is an arithmetic number, because the mean of its divisors is an integer number (5577336000).

Almost surely, 287575338997 is an apocalyptic number.

It is an amenable number.

87575338997 is a deficient number, since it is larger than the sum of its proper divisors (1662037003).

87575338997 is a wasteful number, since it uses less digits than its factorization.

87575338997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436.

The product of its digits is 400075200, while the sum is 71.

The spelling of 87575338997 in words is "eighty-seven billion, five hundred seventy-five million, three hundred thirty-eight thousand, nine hundred ninety-seven".

Divisors: 1 89 149 1367 4831 13261 121663 203683 429959 719819 6603977 18127787 64063891 587753953 983992573 87575338997