Search a number
-
+
13531013454 = 2371931669259
BaseRepresentation
bin11001001101000001…
…01110000101001110
31021220222222200222110
430212200232011032
5210202414412304
610114400324450
7656211500550
oct144640560516
937828880873
1013531013454
1158139a4752
122757613726
1313783c514a
149250b54d0
15542d94289
hex32682e14e

13531013454 has 32 divisors (see below), whose sum is σ = 31088298240. Its totient is φ = 3845970432.

The previous prime is 13531013453. The next prime is 13531013491. The reversal of 13531013454 is 45431013531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531013453) 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, 826524 + ... + 842735.

It is an arithmetic number, because the mean of its divisors is an integer number (971509320).

Almost surely, 213531013454 is an apocalyptic number.

13531013454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13531013454 is an abundant number, since it is smaller than the sum of its proper divisors (17557284786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531013454 is a wasteful number, since it uses less digits than its factorization.

13531013454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669464.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 13531013454 its reverse (45431013531), we get a palindrome (58962026985).

The spelling of 13531013454 in words is "thirteen billion, five hundred thirty-one million, thirteen thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 193 386 579 1158 1351 2702 4053 8106 1669259 3338518 5007777 10015554 11684813 23369626 35054439 70108878 322166987 644333974 966500961 1933001922 2255168909 4510337818 6765506727 13531013454