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13381148 = 2211227647
BaseRepresentation
bin110011000010…
…111000011100
3221011211111002
4303002320130
511411144043
61154445432
7221511044
oct63027034
927154432
1013381148
11760a500
124593878
132a06851
141ac4724
151294bb8
hexcc2e1c

13381148 has 18 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 6082120.

The previous prime is 13381117. The next prime is 13381153. The reversal of 13381148 is 84118331.

It is a self number, because there is not a number n which added to its sum of digits gives 13381148.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13340 + ... + 14307.

It is an arithmetic number, because the mean of its divisors is an integer number (1430016).

Almost surely, 213381148 is an apocalyptic number.

It is an amenable number.

13381148 is a deficient number, since it is larger than the sum of its proper divisors (12359140).

13381148 is a wasteful number, since it uses less digits than its factorization.

13381148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27673 (or 27660 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 13381148 is about 3658.0251502689. The cubic root of 13381148 is about 237.4093349223.

Adding to 13381148 its reverse (84118331), we get a palindrome (97499479).

The spelling of 13381148 in words is "thirteen million, three hundred eighty-one thousand, one hundred forty-eight".

Divisors: 1 2 4 11 22 44 121 242 484 27647 55294 110588 304117 608234 1216468 3345287 6690574 13381148