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10771033987 = 71538719141
BaseRepresentation
bin10100000100000000…
…01110111110000011
31000210122121012220201
422002000032332003
5134024341041422
64540444350031
7530626164310
oct120200167603
930718535821
1010771033987
114627a7128a
122107245317
13102866abbc
1474270bd07
15430912727
hex28200ef83

10771033987 has 4 divisors (see below), whose sum is σ = 12309753136. Its totient is φ = 9232314840.

The previous prime is 10771033981. The next prime is 10771033991. The reversal of 10771033987 is 78933017701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78933017701 = 92398543459.

It is not a de Polignac number, because 10771033987 - 211 = 10771031939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10771033981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769359564 + ... + 769359577.

It is an arithmetic number, because the mean of its divisors is an integer number (3077438284).

Almost surely, 210771033987 is an apocalyptic number.

10771033987 is a deficient number, since it is larger than the sum of its proper divisors (1538719149).

10771033987 is an equidigital number, since it uses as much as digits as its factorization.

10771033987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538719148.

The product of its (nonzero) digits is 222264, while the sum is 46.

The spelling of 10771033987 in words is "ten billion, seven hundred seventy-one million, thirty-three thousand, nine hundred eighty-seven".

Divisors: 1 7 1538719141 10771033987