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1688070014 = 27131737501
BaseRepresentation
bin110010010011101…
…1110011101111110
311100122101211201122
41210213132131332
511424121220024
6435301110542
756555233631
oct14447363576
94318354648
101688070014
11796964a94
123b13b8452
1320b9603c7
1412029bc18
159d2e8d5e
hex649de77e

1688070014 has 16 divisors (see below), whose sum is σ = 2575937376. Its totient is φ = 829500000.

The previous prime is 1688070011. The next prime is 1688070047. The reversal of 1688070014 is 4100708861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688070011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26264 + ... + 63764.

It is an arithmetic number, because the mean of its divisors is an integer number (160996086).

Almost surely, 21688070014 is an apocalyptic number.

1688070014 is a deficient number, since it is larger than the sum of its proper divisors (887867362).

1688070014 is a wasteful number, since it uses less digits than its factorization.

1688070014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37891.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1688070014 is about 41086.1292165616. The cubic root of 1688070014 is about 1190.6848243778.

Adding to 1688070014 its reverse (4100708861), we get a palindrome (5788778875).

The spelling of 1688070014 in words is "one billion, six hundred eighty-eight million, seventy thousand, fourteen".

Divisors: 1 2 71 142 317 634 22507 37501 45014 75002 2662571 5325142 11887817 23775634 844035007 1688070014