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13141749 = 319307751
BaseRepresentation
bin110010001000…
…011011110101
3220201200002110
4302020123311
511331013444
61145401233
7216463065
oct62103365
926650073
1013141749
117466655
124499219
1329518aa
141a613a5
151248cb9
hexc886f5

13141749 has 16 divisors (see below), whose sum is σ = 18529280. Its totient is φ = 8262000.

The previous prime is 13141741. The next prime is 13141753. The reversal of 13141749 is 94714131.

13141749 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13141749 - 23 = 13141741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13141741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17124 + ... + 17874.

It is an arithmetic number, because the mean of its divisors is an integer number (1158080).

Almost surely, 213141749 is an apocalyptic number.

13141749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13141749 is a deficient number, since it is larger than the sum of its proper divisors (5387531).

13141749 is a wasteful number, since it uses less digits than its factorization.

13141749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its digits is 3024, while the sum is 30.

The square root of 13141749 is about 3625.1550311676. The cubic root of 13141749 is about 235.9849949763.

The spelling of 13141749 in words is "thirteen million, one hundred forty-one thousand, seven hundred forty-nine".

Divisors: 1 3 19 57 307 751 921 2253 5833 14269 17499 42807 230557 691671 4380583 13141749