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30540243323 = 81673739469
BaseRepresentation
bin11100011100010101…
…110010000101111011
32220211101212002220002
4130130111302011323
51000021300241243
622010251223215
72130546533162
oct343425620573
986741762802
1030540243323
1111a52197917
125b03a47b0b
132b5929a6c5
14169a0b83d9
15bdb290eb8
hex71c57217b

30540243323 has 4 divisors (see below), whose sum is σ = 30543990960. Its totient is φ = 30536495688.

The previous prime is 30540243319. The next prime is 30540243367. The reversal of 30540243323 is 32334204503.

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 30540243323 - 22 = 30540243319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30540243373) 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 3 ways as a sum of consecutive naturals, for example, 1861568 + ... + 1877901.

It is an arithmetic number, because the mean of its divisors is an integer number (7635997740).

Almost surely, 230540243323 is an apocalyptic number.

30540243323 is a deficient number, since it is larger than the sum of its proper divisors (3747637).

30540243323 is an equidigital number, since it uses as much as digits as its factorization.

30540243323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747636.

The product of its (nonzero) digits is 25920, while the sum is 29.

Adding to 30540243323 its reverse (32334204503), we get a palindrome (62874447826).

The spelling of 30540243323 in words is "thirty billion, five hundred forty million, two hundred forty-three thousand, three hundred twenty-three".

Divisors: 1 8167 3739469 30540243323