Search a number
-
+
13908193 = 1321747103
BaseRepresentation
bin110101000011…
…100011100001
3222011121110021
4311003203201
512030030233
61214033441
7226134445
oct65034341
928147407
1013908193
11793a482
1247a8881
132b5c700
141bc0825
15134ae2d
hexd438e1

13908193 has 24 divisors (see below), whose sum is σ = 16443648. Its totient is φ = 11711232.

The previous prime is 13908149. The next prime is 13908203. The reversal of 13908193 is 39180931.

It is not a de Polignac number, because 13908193 - 29 = 13907681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13908113) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 134980 + ... + 135082.

It is an arithmetic number, because the mean of its divisors is an integer number (685152).

Almost surely, 213908193 is an apocalyptic number.

13908193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13908193 is a deficient number, since it is larger than the sum of its proper divisors (2535455).

13908193 is a wasteful number, since it uses less digits than its factorization.

13908193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 13908193 is about 3729.3689814766. The cubic root of 13908193 is about 240.4862422128.

The spelling of 13908193 in words is "thirteen million, nine hundred eight thousand, one hundred ninety-three".

Divisors: 1 13 17 47 103 169 221 611 799 1339 1751 2873 4841 7943 10387 17407 22763 62933 82297 135031 295919 818129 1069861 13908193