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30002333213021 = 1313615081333737
BaseRepresentation
bin1101101001001011101100…
…11010011110000101011101
310221020012021012001021001012
412310211312122132011131
512413024234300304041
6143450514232025005
76214411533360431
oct664456632360535
9127205235037035
1030002333213021
119617a10a37584
1234467a0832165
131398291942980
1475a1991c29c1
15370669a5b3eb
hex1b497669e15d

30002333213021 has 16 divisors (see below), whose sum is σ = 32340405647088. Its totient is φ = 27668583321600.

The previous prime is 30002333213003. The next prime is 30002333213029. The reversal of 30002333213021 is 12031233320003.

It can be written as a sum of positive squares in 8 ways, for example, as 18454155388900 + 11548177824121 = 4295830^2 + 3398261^2 .

It is not a de Polignac number, because 30002333213021 - 238 = 29727455306077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002333213029) 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, 89731265 + ... + 90065001.

It is an arithmetic number, because the mean of its divisors is an integer number (2021275352943).

Almost surely, 230002333213021 is an apocalyptic number.

It is an amenable number.

30002333213021 is a deficient number, since it is larger than the sum of its proper divisors (2338072434067).

30002333213021 is a wasteful number, since it uses less digits than its factorization.

30002333213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340192.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30002333213021 its reverse (12031233320003), we get a palindrome (42033566533024).

The spelling of 30002333213021 in words is "thirty trillion, two billion, three hundred thirty-three million, two hundred thirteen thousand, twenty-one".

Divisors: 1 13 1361 5081 17693 66053 333737 4338581 6915241 89898133 454216057 1695717697 5904808741 22044330061 2307871785617 30002333213021