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2749136225 = 52119996859
BaseRepresentation
bin1010001111011100…
…0111110101100001
321002120222120221012
42203313013311201
521112234324400
61132443310305
7125061162263
oct24367076541
97076876835
102749136225
1111908a7810
1264881b395
1334a72b934
141c1183b33
1511153dd35
hexa3dc7d61

2749136225 has 12 divisors (see below), whose sum is σ = 3718831920. Its totient is φ = 1999371600.

The previous prime is 2749136191. The next prime is 2749136231. The reversal of 2749136225 is 5226319472.

It is not a de Polignac number, because 2749136225 - 28 = 2749135969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4998155 + ... + 4998704.

It is an arithmetic number, because the mean of its divisors is an integer number (309902660).

Almost surely, 22749136225 is an apocalyptic number.

2749136225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2749136225 is a deficient number, since it is larger than the sum of its proper divisors (969695695).

2749136225 is a wasteful number, since it uses less digits than its factorization.

2749136225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996880 (or 9996875 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 2749136225 is about 52432.2059902118. The cubic root of 2749136225 is about 1400.8729632079.

The spelling of 2749136225 in words is "two billion, seven hundred forty-nine million, one hundred thirty-six thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 275 9996859 49984295 109965449 249921475 549827245 2749136225