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675488680 = 23516887217
BaseRepresentation
bin101000010000110…
…010001110101000
31202002001101021021
4220100302032220
52340411114210
6151010022224
722511362516
oct5020621650
91662041237
10675488680
11317328709
1216a277974
13a9c39759
14659d74b6
153e47ebda
hex284323a8

675488680 has 16 divisors (see below), whose sum is σ = 1519849620. Its totient is φ = 270195456.

The previous prime is 675488663. The next prime is 675488689. The reversal of 675488680 is 86884576.

It can be written as a sum of positive squares in 2 ways, for example, as 637764516 + 37724164 = 25254^2 + 6142^2 .

It is not an unprimeable number, because it can be changed into a prime (675488689) 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 3 ways as a sum of consecutive naturals, for example, 8443569 + ... + 8443648.

Almost surely, 2675488680 is an apocalyptic number.

It is an amenable number.

675488680 is an abundant number, since it is smaller than the sum of its proper divisors (844360940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

675488680 is a wasteful number, since it uses less digits than its factorization.

675488680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16887228 (or 16887224 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The square root of 675488680 is about 25990.1650629618. The cubic root of 675488680 is about 877.4169606191.

The spelling of 675488680 in words is "six hundred seventy-five million, four hundred eighty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 16887217 33774434 67548868 84436085 135097736 168872170 337744340 675488680