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30202130213 = 269449324989
BaseRepresentation
bin11100001000001011…
…111110111100100101
32212221211122011220022
4130020023332330211
5443323221131323
621512532244525
72116302604523
oct341013767445
985854564808
1030202130213
11118993514a2
125a2a770745
132b04216b88
141667223313
15bbb7544c8
hex7082fef25

30202130213 has 8 divisors (see below), whose sum is σ = 30322366200. Its totient is φ = 30081953728.

The previous prime is 30202130191. The next prime is 30202130237. The reversal of 30202130213 is 31203120203.

It can be written as a sum of positive squares in 4 ways, for example, as 17155236484 + 13046893729 = 130978^2 + 114223^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30202130213 - 224 = 30185352997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30202130191 and 30202130200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202130513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196123 + ... + 1221111.

It is an arithmetic number, because the mean of its divisors is an integer number (3790295775).

Almost surely, 230202130213 is an apocalyptic number.

It is an amenable number.

30202130213 is a deficient number, since it is larger than the sum of its proper divisors (120235987).

30202130213 is a wasteful number, since it uses less digits than its factorization.

30202130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29751.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30202130213 its reverse (31203120203), we get a palindrome (61405250416).

The spelling of 30202130213 in words is "thirty billion, two hundred two million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 269 4493 24989 1208617 6722041 112275577 30202130213