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13148745 = 3529167181
BaseRepresentation
bin110010001010…
…001001001001
3220202000200120
4302022021021
511331224440
61145453453
7216522351
oct62121111
926660616
1013148745
117470935
1244a1289
132954b2c
141a63b61
15124add0
hexc8a249

13148745 has 32 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 6693120.

The previous prime is 13148731. The next prime is 13148747. The reversal of 13148745 is 54784131.

It is not a de Polignac number, because 13148745 - 213 = 13140553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13148747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72555 + ... + 72735.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 213148745 is an apocalyptic number.

13148745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13148745 is a deficient number, since it is larger than the sum of its proper divisors (8865975).

13148745 is a wasteful number, since it uses less digits than its factorization.

13148745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 13440, while the sum is 33.

The square root of 13148745 is about 3626.1198270327. The cubic root of 13148745 is about 236.0268630247.

The spelling of 13148745 in words is "thirteen million, one hundred forty-eight thousand, seven hundred forty-five".

Divisors: 1 3 5 15 29 87 145 167 181 435 501 543 835 905 2505 2715 4843 5249 14529 15747 24215 26245 30227 72645 78735 90681 151135 453405 876583 2629749 4382915 13148745