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1689731104 = 25192779163
BaseRepresentation
bin110010010110111…
…0100000000100000
311100202112020022111
41210231310000200
511430032343404
6435400445104
756605322515
oct14455640040
94322466274
101689731104
11797899a96
123b1a79794
1320c0c24b9
141205b130c
159d526104
hex64b74020

1689731104 has 24 divisors (see below), whose sum is σ = 3501746640. Its totient is φ = 800398656.

The previous prime is 1689731093. The next prime is 1689731119. The reversal of 1689731104 is 4011379861.

It is an unprimeable number.

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, 1388974 + ... + 1390189.

It is an arithmetic number, because the mean of its divisors is an integer number (145906110).

Almost surely, 21689731104 is an apocalyptic number.

It is an amenable number.

1689731104 is an abundant number, since it is smaller than the sum of its proper divisors (1812015536).

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

1689731104 is a wasteful number, since it uses less digits than its factorization.

1689731104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779192 (or 2779184 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1689731104 is about 41106.3389758806. The cubic root of 1689731104 is about 1191.0752478105.

The spelling of 1689731104 in words is "one billion, six hundred eighty-nine million, seven hundred thirty-one thousand, one hundred four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 2779163 5558326 11116652 22233304 44466608 52804097 88933216 105608194 211216388 422432776 844865552 1689731104