Search a number
-
+
6693454146240 = 263355997135367
BaseRepresentation
bin110000101100111000011…
…1101001110101011000000
3212200212222022212010101000
41201121300331032223000
51334131143230134430
622122532544012000
71260405014334021
oct141316075165300
925625868763330
106693454146240
112150750405254
129012a0301000
13397261612a94
14191d719d4c48
15b91a3532e60
hex61670f4eac0

6693454146240 has 448 divisors, whose sum is σ = 24260977843200. Its totient is φ = 1736566013952.

The previous prime is 6693454146217. The next prime is 6693454146241. The reversal of 6693454146240 is 426414543966.

6693454146240 is a `hidden beast` number, since 6 + 6 + 9 + 3 + 4 + 5 + 4 + 1 + 4 + 624 + 0 = 666.

It is a super-2 number, since 2×66934541462402 (a number of 26 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (6693454146241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49379037 + ... + 49514403.

It is an arithmetic number, because the mean of its divisors is an integer number (54153968400).

Almost surely, 26693454146240 is an apocalyptic number.

6693454146240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6693454146240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12130488921600).

6693454146240 is an abundant number, since it is smaller than the sum of its proper divisors (17567523696960).

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

6693454146240 is a wasteful number, since it uses less digits than its factorization.

6693454146240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135549 (or 135533 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 54.

The spelling of 6693454146240 in words is "six trillion, six hundred ninety-three billion, four hundred fifty-four million, one hundred forty-six thousand, two hundred forty".