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13380225 = 352178403
BaseRepresentation
bin110011000010…
…101010000001
3221011210012220
4303002222001
511411131400
61154441253
7221505255
oct63025201
927153186
1013380225
117609841
124593229
132a062c1
141ac4265
1512947a0
hexcc2a81

13380225 has 12 divisors (see below), whose sum is σ = 22122096. Its totient is φ = 7136080.

The previous prime is 13380203. The next prime is 13380229. The reversal of 13380225 is 52208331.

It is not a de Polignac number, because 13380225 - 25 = 13380193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13380195 and 13380204.

It is not an unprimeable number, because it can be changed into a prime (13380229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89127 + ... + 89276.

It is an arithmetic number, because the mean of its divisors is an integer number (1843508).

Almost surely, 213380225 is an apocalyptic number.

13380225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13380225 is a deficient number, since it is larger than the sum of its proper divisors (8741871).

13380225 is a wasteful number, since it uses less digits than its factorization.

13380225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178416 (or 178411 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13380225 is about 3657.8989871236. The cubic root of 13380225 is about 237.4038761516.

Adding to 13380225 its reverse (52208331), we get a palindrome (65588556).

The spelling of 13380225 in words is "thirteen million, three hundred eighty thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 178403 535209 892015 2676045 4460075 13380225