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30234023143 = 149202912907
BaseRepresentation
bin11100001010000101…
…101001010011100111
32220001001122111202221
4130022011221103213
5443404402220033
621520032013211
72120140646032
oct341205512347
986031574687
1030234023143
1111905355095
125a39391207
132b0aa0262c
14166b566019
15bbe45412d
hex70a1694e7

30234023143 has 4 divisors (see below), whose sum is σ = 30436936200. Its totient is φ = 30031110088.

The previous prime is 30234023119. The next prime is 30234023147. The reversal of 30234023143 is 34132043203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34132043203 = 291176967007.

It is a cyclic number.

It is not a de Polignac number, because 30234023143 - 233 = 21644088551 is a prime.

It is a super-2 number, since 2×302340231432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30234023147) 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 3 ways as a sum of consecutive naturals, for example, 101456305 + ... + 101456602.

It is an arithmetic number, because the mean of its divisors is an integer number (7609234050).

Almost surely, 230234023143 is an apocalyptic number.

30234023143 is a deficient number, since it is larger than the sum of its proper divisors (202913057).

30234023143 is a wasteful number, since it uses less digits than its factorization.

30234023143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202913056.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 30234023143 its reverse (34132043203), we get a palindrome (64366066346).

The spelling of 30234023143 in words is "thirty billion, two hundred thirty-four million, twenty-three thousand, one hundred forty-three".

Divisors: 1 149 202912907 30234023143