Search a number
-
+
30454102443 = 319977976911
BaseRepresentation
bin11100010111001101…
…001011100110101011
32220121101202200211010
4130113031023212223
5444332222234233
621553533035003
72125452412452
oct342715134653
986541680733
1030454102443
1111a08601a06
125a9b025a63
132b4449a17b
14168c893b99
15bd3927b63
hex71734b9ab

30454102443 has 32 divisors (see below), whose sum is σ = 43243683840. Its totient is φ = 19009244160.

The previous prime is 30454102439. The next prime is 30454102477. The reversal of 30454102443 is 34420145403.

It is not a de Polignac number, because 30454102443 - 22 = 30454102439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30454102443.

It is not an unprimeable number, because it can be changed into a prime (30454102423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4403158 + ... + 4410068.

It is an arithmetic number, because the mean of its divisors is an integer number (1351365120).

Almost surely, 230454102443 is an apocalyptic number.

30454102443 is a deficient number, since it is larger than the sum of its proper divisors (12789581397).

30454102443 is a wasteful number, since it uses less digits than its factorization.

30454102443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7827.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 30454102443 its reverse (34420145403), we get a palindrome (64874247846).

The spelling of 30454102443 in words is "thirty billion, four hundred fifty-four million, one hundred two thousand, four hundred forty-three".

Divisors: 1 3 19 57 97 291 797 1843 2391 5529 6911 15143 20733 45429 77309 131309 231927 393927 670367 1468871 2011101 4406613 5508067 12736973 16524201 38210919 104653273 313959819 534282499 1602847497 10151367481 30454102443