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676076689 = 1741779521
BaseRepresentation
bin101000010011000…
…001110010010001
31202010011020212101
4220103001302101
52341033423224
6151030400401
722516362031
oct5023016221
91663136771
10676076689
1131769a472
1216a500101
13aa0b42a2
1465b0b8c1
153e549044
hex284c1c91

676076689 has 8 divisors (see below), whose sum is σ = 716092488. Its totient is φ = 636088320.

The previous prime is 676076671. The next prime is 676076701. The reversal of 676076689 is 986670676.

It can be written as a sum of positive squares in 4 ways, for example, as 323388289 + 352688400 = 17983^2 + 18780^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-676076689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676076629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66249 + ... + 75769.

It is an arithmetic number, because the mean of its divisors is an integer number (89511561).

Almost surely, 2676076689 is an apocalyptic number.

It is an amenable number.

676076689 is a deficient number, since it is larger than the sum of its proper divisors (40015799).

676076689 is a wasteful number, since it uses less digits than its factorization.

676076689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13715.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 676076689 is about 26001.4747466370. The cubic root of 676076689 is about 877.6714822480.

The spelling of 676076689 in words is "six hundred seventy-six million, seventy-six thousand, six hundred eighty-nine".

Divisors: 1 17 4177 9521 71009 161857 39769217 676076689