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30430400421 = 310301984707
BaseRepresentation
bin11100010101110010…
…110000111110100101
32220112202011111202110
4130111302300332211
5444310140303141
621551325031233
72125044064401
oct342562607645
986482144673
1030430400421
11119a6193263
125a930b5519
132b3c5bb9c5
141689684101
15bd17e4e16
hex715cb0fa5

30430400421 has 8 divisors (see below), whose sum is σ = 40577847264. Its totient is φ = 20284943600.

The previous prime is 30430400417. The next prime is 30430400431. The reversal of 30430400421 is 12400403403.

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 30430400421 - 22 = 30430400417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30430400431) 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, 461451 + ... + 523256.

It is an arithmetic number, because the mean of its divisors is an integer number (5072230908).

Almost surely, 230430400421 is an apocalyptic number.

It is an amenable number.

30430400421 is a deficient number, since it is larger than the sum of its proper divisors (10147446843).

30430400421 is a wasteful number, since it uses less digits than its factorization.

30430400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995011.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30430400421 its reverse (12400403403), we get a palindrome (42830803824).

The spelling of 30430400421 in words is "thirty billion, four hundred thirty million, four hundred thousand, four hundred twenty-one".

Divisors: 1 3 10301 30903 984707 2954121 10143466807 30430400421