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13913793 = 325926203
BaseRepresentation
bin110101000100…
…111011000001
3222011220010200
4311010323001
512030220133
61214115413
7226156665
oct65047301
928156120
1013913793
117943703
1247abb69
132b6211a
141bc28a5
15134c913
hexd44ec1

13913793 has 12 divisors (see below), whose sum is σ = 20439120. Its totient is φ = 9118296.

The previous prime is 13913791. The next prime is 13913807. The reversal of 13913793 is 39731931.

It is not a de Polignac number, because 13913793 - 21 = 13913791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13913791) 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 11 ways as a sum of consecutive naturals, for example, 12571 + ... + 13632.

It is an arithmetic number, because the mean of its divisors is an integer number (1703260).

Almost surely, 213913793 is an apocalyptic number.

It is an amenable number.

13913793 is a deficient number, since it is larger than the sum of its proper divisors (6525327).

13913793 is a wasteful number, since it uses less digits than its factorization.

13913793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26268 (or 26265 counting only the distinct ones).

The product of its digits is 15309, while the sum is 36.

The square root of 13913793 is about 3730.1197031731. The cubic root of 13913793 is about 240.5185143718.

It can be divided in two parts, 13913 and 793, that added together give a triangular number (14706 = T171).

The spelling of 13913793 in words is "thirteen million, nine hundred thirteen thousand, seven hundred ninety-three".

Divisors: 1 3 9 59 177 531 26203 78609 235827 1545977 4637931 13913793