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2281117919 = 17314328497
BaseRepresentation
bin1000011111110111…
…0001100011011111
312212222022210111212
42013331301203133
514132431233134
61014204135035
7110346116363
oct20775614337
95788283455
102281117919
11a706a4723
12537b3747b
132a4793822
14178d552a3
15d53e1bce
hex87f718df

2281117919 has 8 divisors (see below), whose sum is σ = 2493214848. Its totient is φ = 2077678080.

The previous prime is 2281117907. The next prime is 2281117957. The reversal of 2281117919 is 9197111822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2281117919 - 220 = 2280069343 is a prime.

It is a super-2 number, since 2×22811179192 = 10406997920765781122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281117519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163722 + ... + 2164775.

It is an arithmetic number, because the mean of its divisors is an integer number (311651856).

Almost surely, 22281117919 is an apocalyptic number.

2281117919 is a deficient number, since it is larger than the sum of its proper divisors (212096929).

2281117919 is a wasteful number, since it uses less digits than its factorization.

2281117919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328545.

The product of its digits is 18144, while the sum is 41.

The square root of 2281117919 is about 47761.0502292401. The cubic root of 2281117919 is about 1316.3839505011.

The spelling of 2281117919 in words is "two billion, two hundred eighty-one million, one hundred seventeen thousand, nine hundred nineteen".

Divisors: 1 17 31 527 4328497 73584449 134183407 2281117919