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1816540014 = 234121413449
BaseRepresentation
bin110110001000110…
…0011001101101110
311200121010210102210
41230101203031232
512210013240024
6500130431250
763005223012
oct15421431556
94617123383
101816540014
11852431443
12428432526
1322c461663
14133380542
15a9724129
hex6c46336e

1816540014 has 32 divisors (see below), whose sum is σ = 3724509600. Its totient is φ = 590297600.

The previous prime is 1816540009. The next prime is 1816540039. The reversal of 1816540014 is 4100456181.

1816540014 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524962 + ... + 528410.

It is an arithmetic number, because the mean of its divisors is an integer number (116390925).

Almost surely, 21816540014 is an apocalyptic number.

1816540014 is an abundant number, since it is smaller than the sum of its proper divisors (1907969586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816540014 is a wasteful number, since it uses less digits than its factorization.

1816540014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1816540014 is about 42620.8870625659. The cubic root of 1816540014 is about 1220.1549597130.

Adding to 1816540014 its reverse (4100456181), we get a palindrome (5916996195).

The spelling of 1816540014 in words is "one billion, eight hundred sixteen million, five hundred forty thousand, fourteen".

Divisors: 1 2 3 6 41 82 123 246 2141 3449 4282 6423 6898 10347 12846 20694 87781 141409 175562 263343 282818 424227 526686 848454 7384309 14768618 22152927 44305854 302756669 605513338 908270007 1816540014