Search a number
-
+
30432220403 = 132340940031
BaseRepresentation
bin11100010101111001…
…101101010011110011
32220112212120222022012
4130111321231103303
5444311122023103
621551432033135
72125065414434
oct342571552363
986485528265
1030432220403
11119a7216682
125a938327ab
132b3caa8210
1416899d948b
15bd1a542d8
hex715e6d4f3

30432220403 has 4 divisors (see below), whose sum is σ = 32773160448. Its totient is φ = 28091280360.

The previous prime is 30432220393. The next prime is 30432220417. The reversal of 30432220403 is 30402223403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30402223403 = 107284132929.

It is not a de Polignac number, because 30432220403 - 224 = 30415443187 is a prime.

It is a super-2 number, since 2×304322204032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30432220493) 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, 1170470003 + ... + 1170470028.

It is an arithmetic number, because the mean of its divisors is an integer number (8193290112).

Almost surely, 230432220403 is an apocalyptic number.

30432220403 is a deficient number, since it is larger than the sum of its proper divisors (2340940045).

30432220403 is a wasteful number, since it uses less digits than its factorization.

30432220403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340940044.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 30432220403 its reverse (30402223403), we get a palindrome (60834443806).

The spelling of 30432220403 in words is "thirty billion, four hundred thirty-two million, two hundred twenty thousand, four hundred three".

Divisors: 1 13 2340940031 30432220403