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18882125 = 53151057
BaseRepresentation
bin100100000000…
…1111001001101
31022112022101222
41020001321031
514313212000
61512413125
7316331633
oct110017115
938468358
1018882125
11a727469
1263a71a5
133bb1672
142717353
1519cea85
hex1201e4d

18882125 has 8 divisors (see below), whose sum is σ = 23565048. Its totient is φ = 15105600.

The previous prime is 18882119. The next prime is 18882137. The reversal of 18882125 is 52128881.

It can be written as a sum of positive squares in 4 ways, for example, as 743044 + 18139081 = 862^2 + 4259^2 .

It is not a de Polignac number, because 18882125 - 214 = 18865741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75404 + ... + 75653.

It is an arithmetic number, because the mean of its divisors is an integer number (2945631).

Almost surely, 218882125 is an apocalyptic number.

It is an amenable number.

18882125 is a deficient number, since it is larger than the sum of its proper divisors (4682923).

18882125 is an equidigital number, since it uses as much as digits as its factorization.

18882125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151072 (or 151062 counting only the distinct ones).

The product of its digits is 10240, while the sum is 35.

The square root of 18882125 is about 4345.3567172328. The cubic root of 18882125 is about 266.2871989875.

Subtracting 18882125 from its reverse (52128881), we obtain a square (33246756 = 57662).

The spelling of 18882125 in words is "eighteen million, eight hundred eighty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 151057 755285 3776425 18882125