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30420430111 = 191601075269
BaseRepresentation
bin11100010101001100…
…101110110100011111
32220112001101222001201
4130111030232310133
5444300112230421
621550331220331
72124563250421
oct342514566437
986461358051
1030420430111
11119a05a3435
125a8b8a76a7
132b3a50a806
14168820a811
15bd09c5b91
hex71532ed1f

30420430111 has 4 divisors (see below), whose sum is σ = 32021505400. Its totient is φ = 28819354824.

The previous prime is 30420430099. The next prime is 30420430127. The reversal of 30420430111 is 11103402403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30420430111 - 213 = 30420421919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1601075269 = 30420430111 / (3 + 0 + 4 + 2 + 0 + 4 + 3 + 0 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420430141) 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, 800537616 + ... + 800537653.

It is an arithmetic number, because the mean of its divisors is an integer number (8005376350).

Almost surely, 230420430111 is an apocalyptic number.

30420430111 is a deficient number, since it is larger than the sum of its proper divisors (1601075289).

30420430111 is a wasteful number, since it uses less digits than its factorization.

30420430111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601075288.

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

Adding to 30420430111 its reverse (11103402403), we get a palindrome (41523832514).

The spelling of 30420430111 in words is "thirty billion, four hundred twenty million, four hundred thirty thousand, one hundred eleven".

Divisors: 1 19 1601075269 30420430111