Search a number
-
+
2221013130000 = 24354719953147
BaseRepresentation
bin100000010100011110101…
…100101101101100010000
321212022211020001010210120
4200110132230231230100
5242342113330130000
64420152551230240
7316314530053530
oct40243654555420
97768736033716
102221013130000
11786a21012625
122ba544978380
13131596114782
14796d76214c0
153cb910e46a0
hex2051eb2db10

2221013130000 has 400 divisors, whose sum is σ = 8235303859200. Its totient is φ = 505099584000.

The previous prime is 2221013129953. The next prime is 2221013130031. The reversal of 2221013130000 is 313101222.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41763427 + ... + 41816573.

It is an arithmetic number, because the mean of its divisors is an integer number (20588259648).

Almost surely, 22221013130000 is an apocalyptic number.

2221013130000 is a gapful number since it is divisible by the number (20) 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 2221013130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4117651929600).

2221013130000 is an abundant number, since it is smaller than the sum of its proper divisors (6014290729200).

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

2221013130000 is a wasteful number, since it uses less digits than its factorization.

2221013130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53384 (or 53363 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2221013130000 its reverse (313101222), we get a palindrome (2221326231222).

The spelling of 2221013130000 in words is "two trillion, two hundred twenty-one billion, thirteen million, one hundred thirty thousand".