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214539794540 = 22520115334157
BaseRepresentation
bin1100011111001110010…
…0010111100001101100
3202111202122110202222022
43013303210113201230
512003334141411130
6242320324205312
721333332110361
oct3076344274154
9674678422868
10214539794540
1182a93137025
12356b4b39838
13173007072b6
14a55314c468
1558a9b817e5
hex31f391786c

214539794540 has 24 divisors (see below), whose sum is σ = 450757687632. Its totient is φ = 85773228480.

The previous prime is 214539794531. The next prime is 214539794543. The reversal of 214539794540 is 45497935412.

It is not an unprimeable number, because it can be changed into a prime (214539794543) 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, 2626859 + ... + 2707298.

It is an arithmetic number, because the mean of its divisors is an integer number (18781570318).

Almost surely, 2214539794540 is an apocalyptic number.

214539794540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214539794540 is an abundant number, since it is smaller than the sum of its proper divisors (236217893092).

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

214539794540 is a wasteful number, since it uses less digits than its factorization.

214539794540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336177 (or 5336175 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 214539794540 in words is "two hundred fourteen billion, five hundred thirty-nine million, seven hundred ninety-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2011 4022 8044 10055 20110 40220 5334157 10668314 21336628 26670785 53341570 106683140 10726989727 21453979454 42907958908 53634948635 107269897270 214539794540