Search a number
-
+
13105291454784 = 26349744358831
BaseRepresentation
bin1011111010110101000000…
…1111011110100101000000
31201101212001021221121220000
42332231100033132211000
53204204114103023114
643512253205520000
72521553224243644
oct276552017364500
951355037847800
1013105291454784
1141a2a17410121
121577a87713000
13740a92821b99
14334429b34c24
1517ad731e9e09
hexbeb503de940

13105291454784 has 280 divisors, whose sum is σ = 39337952320128. Its totient is φ = 4313562439680.

The previous prime is 13105291454779. The next prime is 13105291454851. The reversal of 13105291454784 is 48745419250131.

13105291454784 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 5 + 2 + 9 + 14 + 547 + 84 = 666.

13105291454784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131052914547842 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 13105291454784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 222732249 + ... + 222791079.

Almost surely, 213105291454784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13105291454784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19668976160064).

13105291454784 is an abundant number, since it is smaller than the sum of its proper divisors (26232660865344).

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

13105291454784 is an equidigital number, since it uses as much as digits as its factorization.

13105291454784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59395 (or 59376 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 13105291454784 in words is "thirteen trillion, one hundred five billion, two hundred ninety-one million, four hundred fifty-four thousand, seven hundred eighty-four".