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30212203221311 = 171777188424783
BaseRepresentation
bin1101101111010010100111…
…01001000001000100111111
310221222020222101111022120012
412313221103221001010333
512424444043011040221
6144131143342413435
76235521363122006
oct667512351010477
9127866871438505
1030212203221311
119698a180a7021
12347b3b189127b
1313b1cc9a37527
147663c8069c3d
15375d4e76265b
hex1b7a53a4113f

30212203221311 has 4 divisors (see below), whose sum is σ = 31989391646112. Its totient is φ = 28435014796512.

The previous prime is 30212203221307. The next prime is 30212203221367. The reversal of 30212203221311 is 11312230221203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30212203221311 - 22 = 30212203221307 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 (30212203221371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888594212375 + ... + 888594212408.

It is an arithmetic number, because the mean of its divisors is an integer number (7997347911528).

Almost surely, 230212203221311 is an apocalyptic number.

30212203221311 is a deficient number, since it is larger than the sum of its proper divisors (1777188424801).

30212203221311 is a wasteful number, since it uses less digits than its factorization.

30212203221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777188424800.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30212203221311 its reverse (11312230221203), we get a palindrome (41524433442514).

The spelling of 30212203221311 in words is "thirty trillion, two hundred twelve billion, two hundred three million, two hundred twenty-one thousand, three hundred eleven".

Divisors: 1 17 1777188424783 30212203221311