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213312023401 = 281759117521
BaseRepresentation
bin1100011010101001100…
…0110010101101101001
3202101121002012112121011
43012222120302231221
511443330334222101
6241554424543521
721261033165601
oct3065230625551
9671532175534
10213312023401
1182513092434
1235411921ba1
131716623b4b9
14a47806dc01
155836eac751
hex31aa632b69

213312023401 has 4 divisors (see below), whose sum is σ = 214071141204. Its totient is φ = 212552905600.

The previous prime is 213312023399. The next prime is 213312023413. The reversal of 213312023401 is 104320213312.

213312023401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108820814400 + 104491209001 = 329880^2 + 323251^2 .

It is a cyclic number.

It is not a de Polignac number, because 213312023401 - 21 = 213312023399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213312023471) 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, 379558480 + ... + 379559041.

It is an arithmetic number, because the mean of its divisors is an integer number (53517785301).

Almost surely, 2213312023401 is an apocalyptic number.

It is an amenable number.

213312023401 is a deficient number, since it is larger than the sum of its proper divisors (759117803).

213312023401 is an equidigital number, since it uses as much as digits as its factorization.

213312023401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759117802.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213312023401 its reverse (104320213312), we get a palindrome (317632236713).

The spelling of 213312023401 in words is "two hundred thirteen billion, three hundred twelve million, twenty-three thousand, four hundred one".

Divisors: 1 281 759117521 213312023401