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2105319192 = 23387721633
BaseRepresentation
bin111110101111100…
…1001111100011000
312102201112021222220
41331133021330120
513302430203232
6544524144040
7103112626554
oct17537117430
95381467886
102105319192
11990441519
124a9098020
13277231002
1415d872864
15c4c6842c
hex7d7c9f18

2105319192 has 16 divisors (see below), whose sum is σ = 5263298040. Its totient is φ = 701773056.

The previous prime is 2105319179. The next prime is 2105319199. The reversal of 2105319192 is 2919135012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105319199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43860793 + ... + 43860840.

Almost surely, 22105319192 is an apocalyptic number.

It is an amenable number.

2105319192 is an abundant number, since it is smaller than the sum of its proper divisors (3157978848).

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

2105319192 is a wasteful number, since it uses less digits than its factorization.

2105319192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87721642 (or 87721638 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 2105319192 is about 45883.7573875549. The cubic root of 2105319192 is about 1281.6594671059.

The spelling of 2105319192 in words is "two billion, one hundred five million, three hundred nineteen thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 87721633 175443266 263164899 350886532 526329798 701773064 1052659596 2105319192