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2116471 = 71911583
BaseRepresentation
bin1000000100101101110111
310222112020211
420010231313
51020211341
6113210251
723663320
oct10045567
93875224
102116471
111216155
12860987
13591466
143d1447
152bc181
hex204b77

2116471 has 8 divisors (see below), whose sum is σ = 2433024. Its totient is φ = 1803480.

The previous prime is 2116469. The next prime is 2116481. The reversal of 2116471 is 1746112.

2116471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2116471 - 21 = 2116469 is a prime.

It is a super-3 number, since 3×21164713 = 28441874849037465333, which contains 333 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 (2116441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546 + ... + 2128.

It is an arithmetic number, because the mean of its divisors is an integer number (304128).

22116471 is an apocalyptic number.

2116471 is a deficient number, since it is larger than the sum of its proper divisors (316553).

2116471 is a wasteful number, since it uses less digits than its factorization.

2116471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its digits is 336, while the sum is 22.

The square root of 2116471 is about 1454.8096095366. The cubic root of 2116471 is about 128.3918452846.

The spelling of 2116471 in words is "two million, one hundred sixteen thousand, four hundred seventy-one".

Divisors: 1 7 191 1337 1583 11081 302353 2116471