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30312022311021 = 311918546130637
BaseRepresentation
bin1101110010001100100010…
…10100101000000001101101
310222022210121221201110112210
412321012101110220001231
512433113010202423041
6144245052324121033
76245654112311163
oct671062124500155
9128283557643483
1030312022311021
1197272903a8590
12349680ab36179
1313bb546c14959
1476b177077233
15378742b64016
hex1b919152806d

30312022311021 has 8 divisors (see below), whose sum is σ = 44090214270624. Its totient is φ = 18370922612720.

The previous prime is 30312022310923. The next prime is 30312022311037. The reversal of 30312022311021 is 12011322021303.

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 30312022311021 - 222 = 30312018116717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312022315021) 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, 459273065286 + ... + 459273065351.

It is an arithmetic number, because the mean of its divisors is an integer number (5511276783828).

Almost surely, 230312022311021 is an apocalyptic number.

It is an amenable number.

30312022311021 is a deficient number, since it is larger than the sum of its proper divisors (13778191959603).

30312022311021 is a wasteful number, since it uses less digits than its factorization.

30312022311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918546130651.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 30312022311021 its reverse (12011322021303), we get a palindrome (42323344332324).

The spelling of 30312022311021 in words is "thirty trillion, three hundred twelve billion, twenty-two million, three hundred eleven thousand, twenty-one".

Divisors: 1 3 11 33 918546130637 2755638391911 10104007437007 30312022311021