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1688379483 = 37131613733
BaseRepresentation
bin110010010100010…
…1010000001011011
311100122222120020110
41210220222001123
511424211120413
6435311455403
756560663110
oct14450520133
94318876213
101688379483
1179705654a
123b1527563
1320ba3b21b
1412033c907
159d35a8c3
hex64a2a05b

1688379483 has 16 divisors (see below), whose sum is σ = 2592412416. Its totient is φ = 957421920.

The previous prime is 1688379479. The next prime is 1688379491. The reversal of 1688379483 is 3849738861.

It is not a de Polignac number, because 1688379483 - 22 = 1688379479 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1688379493) 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 15 ways as a sum of consecutive naturals, for example, 304116 + ... + 309617.

It is an arithmetic number, because the mean of its divisors is an integer number (162025776).

Almost surely, 21688379483 is an apocalyptic number.

1688379483 is a deficient number, since it is larger than the sum of its proper divisors (904032933).

1688379483 is a wasteful number, since it uses less digits than its factorization.

1688379483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613874.

The product of its digits is 6967296, while the sum is 57.

The square root of 1688379483 is about 41089.8951446703. The cubic root of 1688379483 is about 1190.7575815352.

The spelling of 1688379483 in words is "one billion, six hundred eighty-eight million, three hundred seventy-nine thousand, four hundred eighty-three".

Divisors: 1 3 7 21 131 393 917 2751 613733 1841199 4296131 12888393 80399023 241197069 562793161 1688379483