Search a number
-
+
12513313760805 = 335112131922347151
BaseRepresentation
bin1011011000010111101110…
…0111110010011000100101
31122022021001100110221102000
42312011323213302120211
53120004231310321210
642340311553235513
72431025403001134
oct266057347623045
948267040427360
1012513313760805
113a9495943a900
1214a11b7562b99
136ca000c17720
1431390d0c391b
1516a7777d1ac0
hexb617b9f2625

12513313760805 has 1152 divisors, whose sum is σ = 29813431173120. Its totient is φ = 4934058624000.

The previous prime is 12513313760797. The next prime is 12513313760887. The reversal of 12513313760805 is 50806731331521.

12513313760805 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 3 + 3 + 1 + 37 + 608 + 0 + 5 = 666.

It is not a de Polignac number, because 12513313760805 - 23 = 12513313760797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 1151 ways as a sum of consecutive naturals, for example, 82869627480 + ... + 82869627630.

It is an arithmetic number, because the mean of its divisors is an integer number (25879714560).

Almost surely, 212513313760805 is an apocalyptic number.

12513313760805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12513313760805 is an abundant number, since it is smaller than the sum of its proper divisors (17300117412315).

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

12513313760805 is a wasteful number, since it uses less digits than its factorization.

12513313760805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 12513313760805 in words is "twelve trillion, five hundred thirteen billion, three hundred thirteen million, seven hundred sixty thousand, eight hundred five".