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2105130355 = 53713783059
BaseRepresentation
bin111110101111001…
…1011110101110011
312102201011200221221
41331132123311303
513302403132410
6544520125511
7103111212166
oct17536336563
95381150857
102105130355
11990322659
124a9006897
13277196083
1415d823add
15c4c2c4da
hex7d79bd73

2105130355 has 16 divisors (see below), whose sum is σ = 2613399840. Its totient is φ = 1626607872.

The previous prime is 2105130347. The next prime is 2105130359. The reversal of 2105130355 is 5530315012.

It is a cyclic number.

It is not a de Polignac number, because 2105130355 - 23 = 2105130347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105130359) 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, 16185 + ... + 66874.

It is an arithmetic number, because the mean of its divisors is an integer number (163337490).

Almost surely, 22105130355 is an apocalyptic number.

2105130355 is a deficient number, since it is larger than the sum of its proper divisors (508269485).

2105130355 is a wasteful number, since it uses less digits than its factorization.

2105130355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83238.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 2105130355 is about 45881.6995652951. The cubic root of 2105130355 is about 1281.6211463980.

Adding to 2105130355 its reverse (5530315012), we get a palindrome (7635445367).

The spelling of 2105130355 in words is "two billion, one hundred five million, one hundred thirty thousand, three hundred fifty-five".

Divisors: 1 5 37 137 185 685 5069 25345 83059 415295 3073183 11379083 15365915 56895415 421026071 2105130355