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2111031355 = 517107232109
BaseRepresentation
bin111110111010011…
…1100100000111011
312110010021111121111
41331310330200323
513310411000410
6545250421151
7103212320236
oct17564744073
95403244544
102111031355
11993693114
124aab917b7
13278480ca4
1416051c41d
15c54e5b8a
hex7dd3c83b

2111031355 has 16 divisors (see below), whose sum is σ = 2707331040. Its totient is φ = 1574620672.

The previous prime is 2111031353. The next prime is 2111031361. The reversal of 2111031355 is 5531301112.

It is a cyclic number.

It is not a de Polignac number, because 2111031355 - 21 = 2111031353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111031353) 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 15 ways as a sum of consecutive naturals, for example, 106960 + ... + 125149.

It is an arithmetic number, because the mean of its divisors is an integer number (169208190).

Almost surely, 22111031355 is an apocalyptic number.

2111031355 is a deficient number, since it is larger than the sum of its proper divisors (596299685).

2111031355 is a wasteful number, since it uses less digits than its factorization.

2111031355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232238.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2111031355 is about 45945.9612479704. The cubic root of 2111031355 is about 1282.8175554072.

Adding to 2111031355 its reverse (5531301112), we get a palindrome (7642332467).

The spelling of 2111031355 in words is "two billion, one hundred eleven million, thirty-one thousand, three hundred fifty-five".

Divisors: 1 5 17 85 107 535 1819 9095 232109 1160545 3945853 19729265 24835663 124178315 422206271 2111031355