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13225455 = 325293899
BaseRepresentation
bin110010011100…
…110111101111
3220212220220200
4302130313233
511341203310
61151244543
7220262115
oct62346757
926786820
1013225455
117513531
124519753
132980a19
141a83ab5
1512639c0
hexc9cdef

13225455 has 12 divisors (see below), whose sum is σ = 22924200. Its totient is φ = 7053552.

The previous prime is 13225453. The next prime is 13225517. The reversal of 13225455 is 55452231.

It is a happy number.

It is not a de Polignac number, because 13225455 - 21 = 13225453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225451) 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, 146905 + ... + 146994.

It is an arithmetic number, because the mean of its divisors is an integer number (1910350).

Almost surely, 213225455 is an apocalyptic number.

13225455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13225455 is a deficient number, since it is larger than the sum of its proper divisors (9698745).

13225455 is a wasteful number, since it uses less digits than its factorization.

13225455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293910 (or 293907 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 13225455 is about 3636.6818667571. The cubic root of 13225455 is about 236.4849682112.

Adding to 13225455 its reverse (55452231), we get a palindrome (68677686).

The spelling of 13225455 in words is "thirteen million, two hundred twenty-five thousand, four hundred fifty-five".

Divisors: 1 3 5 9 15 45 293899 881697 1469495 2645091 4408485 13225455