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30231204121 = 241271146271
BaseRepresentation
bin11100001001111010…
…111001000100011001
32220000212100021210201
4130021322321010121
5443403142012441
621515451342201
72120104665226
oct341172710431
986025307721
1030231204121
11119037aa118
125a38451961
132b0a256481
14166b03094d
15bbe098c31
hex709eb9119

30231204121 has 8 divisors (see below), whose sum is σ = 30368498688. Its totient is φ = 30094008000.

The previous prime is 30231204089. The next prime is 30231204149. The reversal of 30231204121 is 12140213203.

It is a happy number.

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 30231204121 - 25 = 30231204089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30231204821) 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, 630216 + ... + 676486.

It is an arithmetic number, because the mean of its divisors is an integer number (3796062336).

Almost surely, 230231204121 is an apocalyptic number.

It is an amenable number.

30231204121 is a deficient number, since it is larger than the sum of its proper divisors (137294567).

30231204121 is a wasteful number, since it uses less digits than its factorization.

30231204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49223.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30231204121 its reverse (12140213203), we get a palindrome (42371417324).

The spelling of 30231204121 in words is "thirty billion, two hundred thirty-one million, two hundred four thousand, one hundred twenty-one".

Divisors: 1 241 2711 46271 653351 11151311 125440681 30231204121