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30213212311 = 1719223419459
BaseRepresentation
bin11100001000110110…
…010000100010010111
32212222121111012200101
4130020312100202113
5443334040243221
621514005554531
72116466032042
oct341066204227
985877435611
1030213212311
11118a4630657
125a32415a47
132b065c7129
1416688a9c59
15bbc6e2d91
hex708d90897

30213212311 has 16 divisors (see below), whose sum is σ = 33825254400. Its totient is φ = 26818466688.

The previous prime is 30213212299. The next prime is 30213212317. The reversal of 30213212311 is 11321231203.

It is not a de Polignac number, because 30213212311 - 215 = 30213179543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213212317) 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, 137701 + ... + 281758.

It is an arithmetic number, because the mean of its divisors is an integer number (2114078400).

Almost surely, 230213212311 is an apocalyptic number.

30213212311 is a deficient number, since it is larger than the sum of its proper divisors (3612042089).

30213212311 is a wasteful number, since it uses less digits than its factorization.

30213212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419718.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30213212311 its reverse (11321231203), we get a palindrome (41534443514).

The spelling of 30213212311 in words is "thirty billion, two hundred thirteen million, two hundred twelve thousand, three hundred eleven".

Divisors: 1 17 19 223 323 3791 4237 72029 419459 7130803 7969721 93539357 135485257 1590169069 1777247783 30213212311