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30243517131 = 322744410451
BaseRepresentation
bin11100001010101001…
…110111001011001011
32220001201111212002010
4130022221313023023
5443414320022011
621521011311003
72120314440222
oct341251671313
986051455063
1030243517131
111190a74a063
125a405ab463
132b0c977a89
14166c917cb9
15bc01cc1a6
hex70aa772cb

30243517131 has 8 divisors (see below), whose sum is σ = 40502332224. Its totient is φ = 20073523400.

The previous prime is 30243517099. The next prime is 30243517169. The reversal of 30243517131 is 13171534203.

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 30243517131 - 25 = 30243517099 is a prime.

It is a super-2 number, since 2×302435171312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30243517231) 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, 22204545 + ... + 22205906.

It is an arithmetic number, because the mean of its divisors is an integer number (5062791528).

Almost surely, 230243517131 is an apocalyptic number.

30243517131 is a deficient number, since it is larger than the sum of its proper divisors (10258815093).

30243517131 is a wasteful number, since it uses less digits than its factorization.

30243517131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44410681.

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 30243517131 in words is "thirty billion, two hundred forty-three million, five hundred seventeen thousand, one hundred thirty-one".

Divisors: 1 3 227 681 44410451 133231353 10081172377 30243517131