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30533024131 = 171796060243
BaseRepresentation
bin11100011011111010…
…001111100110000011
32220210220021100000121
4130123322033212003
51000012423233011
622005432401111
72130431265031
oct343372174603
986726240017
1030533024131
1111a49106a45
125b01546197
132b579407ac
141699159551
15bda816e71
hex71be8f983

30533024131 has 4 divisors (see below), whose sum is σ = 32329084392. Its totient is φ = 28736963872.

The previous prime is 30533024087. The next prime is 30533024141. The reversal of 30533024131 is 13142033503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13142033503 = 23571392761.

It is a cyclic number.

It is not a de Polignac number, because 30533024131 - 27 = 30533024003 is a prime.

It is a super-2 number, since 2×305330241312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30533024096 and 30533024105.

It is not an unprimeable number, because it can be changed into a prime (30533024141) 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, 898030105 + ... + 898030138.

It is an arithmetic number, because the mean of its divisors is an integer number (8082271098).

Almost surely, 230533024131 is an apocalyptic number.

30533024131 is a deficient number, since it is larger than the sum of its proper divisors (1796060261).

30533024131 is a wasteful number, since it uses less digits than its factorization.

30533024131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796060260.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 30533024131 its reverse (13142033503), we get a palindrome (43675057634).

The spelling of 30533024131 in words is "thirty billion, five hundred thirty-three million, twenty-four thousand, one hundred thirty-one".

Divisors: 1 17 1796060243 30533024131