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2105983351 = 19437335311
BaseRepresentation
bin111110110000110…
…1100000101110111
312102202210001001101
41331201230011313
513303112431401
6544550310531
7103121364103
oct17541540567
95382701041
102105983351
1199085550a
124a9358447
132774043c4
1415d9a6903
15c4d4a101
hex7d86c177

2105983351 has 16 divisors (see below), whose sum is σ = 2299517440. Its totient is φ = 1921993920.

The previous prime is 2105983289. The next prime is 2105983361. The reversal of 2105983351 is 1533895012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2105983351 - 211 = 2105981303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105983351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105983361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41986 + ... + 77296.

It is an arithmetic number, because the mean of its divisors is an integer number (143719840).

Almost surely, 22105983351 is an apocalyptic number.

2105983351 is a deficient number, since it is larger than the sum of its proper divisors (193534089).

2105983351 is a wasteful number, since it uses less digits than its factorization.

2105983351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35446.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 2105983351 is about 45890.9942254469. The cubic root of 2105983351 is about 1281.7942267467.

The spelling of 2105983351 in words is "two billion, one hundred five million, nine hundred eighty-three thousand, three hundred fifty-one".

Divisors: 1 19 43 73 817 1387 3139 35311 59641 670909 1518373 2577703 28849087 48976357 110841229 2105983351