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13540200053 = 71190707043
BaseRepresentation
bin11001001110000111…
…10000111001110101
31021221122021102121212
430213003300321311
5210212242400203
610115325251205
7656352541622
oct144703607165
937848242555
1013540200053
1158190a9786
12275a703b05
13137a2906c3
149263c7349
15543aab1d8
hex3270f0e75

13540200053 has 4 divisors (see below), whose sum is σ = 13730907168. Its totient is φ = 13349492940.

The previous prime is 13540200043. The next prime is 13540200067. The reversal of 13540200053 is 35000204531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35000204531 = 349100287119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13540200053 is a prime.

It is a super-2 number, since 2×135402000532 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540200013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95353451 + ... + 95353592.

It is an arithmetic number, because the mean of its divisors is an integer number (3432726792).

Almost surely, 213540200053 is an apocalyptic number.

It is an amenable number.

13540200053 is a deficient number, since it is larger than the sum of its proper divisors (190707115).

13540200053 is an equidigital number, since it uses as much as digits as its factorization.

13540200053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190707114.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 13540200053 its reverse (35000204531), we get a palindrome (48540404584).

The spelling of 13540200053 in words is "thirteen billion, five hundred forty million, two hundred thousand, fifty-three".

Divisors: 1 71 190707043 13540200053