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1000075689 = 321049105929
BaseRepresentation
bin111011100110111…
…111000110101001
32120200211002221100
4323212333012221
54022004410224
6243123032013
733532334364
oct7346770651
92520732840
101000075689
11473575738
1223ab0b609
1312c265782
1496b6b0db
155cbe8ac9
hex3b9bf1a9

1000075689 has 12 divisors (see below), whose sum is σ = 1445944500. Its totient is φ = 666075264.

The previous prime is 1000075669. The next prime is 1000075753. The reversal of 1000075689 is 9865700001.

It can be written as a sum of positive squares in 2 ways, for example, as 924646464 + 75429225 = 30408^2 + 8685^2 .

It is not a de Polignac number, because 1000075689 - 27 = 1000075561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000075619) 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 11 ways as a sum of consecutive naturals, for example, 43524 + ... + 62405.

It is an arithmetic number, because the mean of its divisors is an integer number (120495375).

Almost surely, 21000075689 is an apocalyptic number.

It is an amenable number.

1000075689 is a deficient number, since it is larger than the sum of its proper divisors (445868811).

1000075689 is a wasteful number, since it uses less digits than its factorization.

1000075689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106984 (or 106981 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1000075689 is about 31623.9733272086. The cubic root of 1000075689 is about 1000.0252290302.

The spelling of 1000075689 in words is "one billion, seventy-five thousand, six hundred eighty-nine".

Divisors: 1 3 9 1049 3147 9441 105929 317787 953361 111119521 333358563 1000075689