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2013458225 = 5280538329
BaseRepresentation
bin111100000000010…
…1110111100110001
312012022200021102212
41320000232330301
513110421130400
6531443221505
7100616053412
oct17000567461
95168607385
102013458225
119435a9a69
12482377895
132611a9ccc
1415159d809
15bbb70335
hex7802ef31

2013458225 has 6 divisors (see below), whose sum is σ = 2496688230. Its totient is φ = 1610766560.

The previous prime is 2013458221. The next prime is 2013458281. The reversal of 2013458225 is 5228543102.

It can be written as a sum of positive squares in 3 ways, for example, as 244078129 + 1769380096 = 15623^2 + 42064^2 .

It is not a de Polignac number, because 2013458225 - 22 = 2013458221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013458191 and 2013458200.

It is not an unprimeable number, because it can be changed into a prime (2013458221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40269140 + ... + 40269189.

It is an arithmetic number, because the mean of its divisors is an integer number (416114705).

Almost surely, 22013458225 is an apocalyptic number.

2013458225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2013458225 is a deficient number, since it is larger than the sum of its proper divisors (483230005).

2013458225 is an equidigital number, since it uses as much as digits as its factorization.

2013458225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80538339 (or 80538334 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 2013458225 is about 44871.5747996435. The cubic root of 2013458225 is about 1262.7407847120.

The spelling of 2013458225 in words is "two billion, thirteen million, four hundred fifty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 80538329 402691645 2013458225