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1679163828 = 223139930319
BaseRepresentation
bin110010000010110…
…0000000110110100
311100000122100201220
41210011200012310
511414331220303
6434342150340
756416441236
oct14405400664
94300570656
101679163828
11791931701
123aa4223b0
13209b62684
1411d020256
159c63a053
hex641601b4

1679163828 has 12 divisors (see below), whose sum is σ = 3918048960. Its totient is φ = 559721272.

The previous prime is 1679163821. The next prime is 1679163833. The reversal of 1679163828 is 8283619761.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×16791638282 = 5639182322527227168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679163821) 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, 69965148 + ... + 69965171.

It is an arithmetic number, because the mean of its divisors is an integer number (326504080).

Almost surely, 21679163828 is an apocalyptic number.

It is an amenable number.

1679163828 is an abundant number, since it is smaller than the sum of its proper divisors (2238885132).

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

1679163828 is a wasteful number, since it uses less digits than its factorization.

1679163828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139930326 (or 139930324 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 1679163828 is about 40977.6015403537. The cubic root of 1679163828 is about 1188.5871300004.

The spelling of 1679163828 in words is "one billion, six hundred seventy-nine million, one hundred sixty-three thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 139930319 279860638 419790957 559721276 839581914 1679163828