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30211302021 = 317592378471
BaseRepresentation
bin11100001000101110…
…111110001010000101
32212222110220011020220
4130020232332022011
5443333043131041
621513501014553
72116443554505
oct341056761205
985873804226
1030211302021
11118a35463aa
125a31854459
132b060a8794
14166852da05
15bbc466d66
hex708bbe285

30211302021 has 8 divisors (see below), whose sum is σ = 42651249984. Its totient is φ = 18956111040.

The previous prime is 30211301977. The next prime is 30211302029. The reversal of 30211302021 is 12020311203.

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

It is not a de Polignac number, because 30211302021 - 27 = 30211301893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211302029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296189185 + ... + 296189286.

It is an arithmetic number, because the mean of its divisors is an integer number (5331406248).

Almost surely, 230211302021 is an apocalyptic number.

It is an amenable number.

30211302021 is a deficient number, since it is larger than the sum of its proper divisors (12439947963).

30211302021 is a wasteful number, since it uses less digits than its factorization.

30211302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592378491.

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

Adding to 30211302021 its reverse (12020311203), we get a palindrome (42231613224).

The spelling of 30211302021 in words is "thirty billion, two hundred eleven million, three hundred two thousand, twenty-one".

Divisors: 1 3 17 51 592378471 1777135413 10070434007 30211302021