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13118148 = 2232364393
BaseRepresentation
bin110010000010…
…101011000100
3220200110201100
4302002223010
511324240043
61145100100
7216334221
oct62025304
926613640
1013118148
11744a94a
124487630
132943c24
141a56948
151241cd3
hexc82ac4

13118148 has 18 divisors (see below), whose sum is σ = 33159854. Its totient is φ = 4372704.

The previous prime is 13118141. The next prime is 13118159. The reversal of 13118148 is 84181131.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 28224 = 3618^2 + 168^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (13118141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182161 + ... + 182232.

Almost surely, 213118148 is an apocalyptic number.

13118148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13118148 is an abundant number, since it is smaller than the sum of its proper divisors (20041706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13118148 is a wasteful number, since it uses less digits than its factorization.

13118148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364403 (or 364398 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 13118148 is about 3621.8983972497. The cubic root of 13118148 is about 235.8436434399.

Adding to 13118148 its reverse (84181131), we get a palindrome (97299279).

The spelling of 13118148 in words is "thirteen million, one hundred eighteen thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 364393 728786 1093179 1457572 2186358 3279537 4372716 6559074 13118148