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320033131213 = 722514429463
BaseRepresentation
bin1001010100000110111…
…01100000101011001101
31010121001122210112110211
410222003131200223031
520220411440144323
6403004324402421
732056501505605
oct4520335405315
91117048715424
10320033131213
111137a83a5294
1252036546411
13242433367c3
14116bd9adc05
1584d12c170d
hex4a83760acd

320033131213 has 4 divisors (see below), whose sum is σ = 320037632928. Its totient is φ = 320028629500.

The previous prime is 320033131189. The next prime is 320033131267. The reversal of 320033131213 is 312131330023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312131330023 = 505496174827.

It is a cyclic number.

It is not a de Polignac number, because 320033131213 - 233 = 311443196621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320033138213) 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, 2142481 + ... + 2286982.

It is an arithmetic number, because the mean of its divisors is an integer number (80009408232).

Almost surely, 2320033131213 is an apocalyptic number.

It is an amenable number.

320033131213 is a deficient number, since it is larger than the sum of its proper divisors (4501715).

320033131213 is an equidigital number, since it uses as much as digits as its factorization.

320033131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501714.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 320033131213 its reverse (312131330023), we get a palindrome (632164461236).

The spelling of 320033131213 in words is "three hundred twenty billion, thirty-three million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 72251 4429463 320033131213