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4540545140 = 2251971168293
BaseRepresentation
bin1000011101010001…
…10011100001110100
3102201102211120222112
410032220303201310
533244334421030
62030315350152
7220342665635
oct41650634164
912642746875
104540545140
111a2002384a
12a68752358
13574901501
1431106188c
151b894ba95
hex10ea33874

4540545140 has 48 divisors (see below), whose sum is σ = 10178421120. Its totient is φ = 1696383360.

The previous prime is 4540545137. The next prime is 4540545209. The reversal of 4540545140 is 415450454.

It is a junction number, because it is equal to n+sod(n) for n = 4540545097 and 4540545106.

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, 57167 + ... + 111126.

It is an arithmetic number, because the mean of its divisors is an integer number (212050440).

Almost surely, 24540545140 is an apocalyptic number.

It is an amenable number.

4540545140 is an abundant number, since it is smaller than the sum of its proper divisors (5637875980).

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

4540545140 is a wasteful number, since it uses less digits than its factorization.

4540545140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168392 (or 168390 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 4540545140 is about 67383.5672846132. The cubic root of 4540545140 is about 1655.9072179380.

Adding to 4540545140 its reverse (415450454), we get a palindrome (4955995594).

The spelling of 4540545140 in words is "four billion, five hundred forty million, five hundred forty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 19 20 38 71 76 95 142 190 284 355 380 710 1349 1420 2698 5396 6745 13490 26980 168293 336586 673172 841465 1682930 3197567 3365860 6395134 11948803 12790268 15987835 23897606 31975670 47795212 59744015 63951340 119488030 227027257 238976060 454054514 908109028 1135136285 2270272570 4540545140