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13103455 = 553197251
BaseRepresentation
bin110001111111…
…000101011111
3220122201120011
4301333011133
511323302310
61144504051
7216243331
oct61770537
926581504
1013103455
11743a902
12447b027
13293a331
141a51451
15123c78a
hexc7f15f

13103455 has 16 divisors (see below), whose sum is σ = 16166304. Its totient is φ = 10192000.

The previous prime is 13103443. The next prime is 13103509. The reversal of 13103455 is 55430131.

It is a happy number.

It is not a de Polignac number, because 13103455 - 25 = 13103423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52080 + ... + 52330.

It is an arithmetic number, because the mean of its divisors is an integer number (1010394).

Almost surely, 213103455 is an apocalyptic number.

13103455 is a deficient number, since it is larger than the sum of its proper divisors (3062849).

13103455 is a wasteful number, since it uses less digits than its factorization.

13103455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13103455 is about 3619.8694727849. The cubic root of 13103455 is about 235.7555582109.

Adding to 13103455 its reverse (55430131), we get a palindrome (68533586).

The spelling of 13103455 in words is "thirteen million, one hundred three thousand, four hundred fifty-five".

Divisors: 1 5 53 197 251 265 985 1255 10441 13303 49447 52205 66515 247235 2620691 13103455