Search a number
-
+
30421114431 = 359389441827
BaseRepresentation
bin11100010101001111…
…010101111000111111
32220112002200201202220
4130111033111320333
5444300301130211
621550354020423
72124602130501
oct342517257077
986462621686
1030421114431
11119a0a20594
125a8bb77713
132b3a6ba136
141688347d71
15bd0aad806
hex7153d5e3f

30421114431 has 16 divisors (see below), whose sum is σ = 41355100800. Its totient is φ = 19885704608.

The previous prime is 30421114429. The next prime is 30421114469. The reversal of 30421114431 is 13441112403.

It is a cyclic number.

It is not a de Polignac number, because 30421114431 - 21 = 30421114429 is a prime.

It is a super-2 number, since 2×304211144312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421114331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152061 + ... + 289766.

It is an arithmetic number, because the mean of its divisors is an integer number (2584693800).

Almost surely, 230421114431 is an apocalyptic number.

30421114431 is a deficient number, since it is larger than the sum of its proper divisors (10933986369).

30421114431 is a wasteful number, since it uses less digits than its factorization.

30421114431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442278.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 30421114431 its reverse (13441112403), we get a palindrome (43862226834).

The spelling of 30421114431 in words is "thirty billion, four hundred twenty-one million, one hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 3 59 177 389 1167 22951 68853 441827 1325481 26067793 78203379 171870703 515612109 10140371477 30421114431