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13107225 = 352174763
BaseRepresentation
bin110010000000…
…000000011001
3220122220201210
4302000000121
511323412400
61144533333
7216260325
oct62000031
926586653
1013107225
11744271a
124481249
13293bc71
141a52985
15123d950
hexc80019

13107225 has 12 divisors (see below), whose sum is σ = 21670736. Its totient is φ = 6990480.

The previous prime is 13107197. The next prime is 13107229. The reversal of 13107225 is 52270131.

It is not a de Polignac number, because 13107225 - 26 = 13107161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13107229) 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, 87307 + ... + 87456.

Almost surely, 213107225 is an apocalyptic number.

13107225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13107225 is a deficient number, since it is larger than the sum of its proper divisors (8563511).

13107225 is a wasteful number, since it uses less digits than its factorization.

13107225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174776 (or 174771 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 13107225 is about 3620.3901723433. The cubic root of 13107225 is about 235.7781658165.

Adding to 13107225 its reverse (52270131), we get a palindrome (65377356).

The spelling of 13107225 in words is "thirteen million, one hundred seven thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 174763 524289 873815 2621445 4369075 13107225