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30103213333 = 64694653457
BaseRepresentation
bin11100000010010010…
…101001010100010101
32212200221111200110011
4130002102221110111
5443122410311313
621455040200221
72113662043234
oct340222512425
985627450404
1030103213333
111184852a806
125a01609071
132ab989238b
141658034b1b
15bb2c1593d
hex7024a9515

30103213333 has 4 divisors (see below), whose sum is σ = 30107873260. Its totient is φ = 30098553408.

The previous prime is 30103213291. The next prime is 30103213339. The reversal of 30103213333 is 33331230103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33331230103 = 36179215159.

It can be written as a sum of positive squares in 2 ways, for example, as 12275088849 + 17828124484 = 110793^2 + 133522^2 .

It is a cyclic number.

It is not a de Polignac number, because 30103213333 - 233 = 21513278741 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 (30103213339) 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, 2320260 + ... + 2333197.

It is an arithmetic number, because the mean of its divisors is an integer number (7526968315).

Almost surely, 230103213333 is an apocalyptic number.

It is an amenable number.

30103213333 is a deficient number, since it is larger than the sum of its proper divisors (4659927).

30103213333 is an equidigital number, since it uses as much as digits as its factorization.

30103213333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659926.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 30103213333 its reverse (33331230103), we get a palindrome (63434443436).

The spelling of 30103213333 in words is "thirty billion, one hundred three million, two hundred thirteen thousand, three hundred thirty-three".

Divisors: 1 6469 4653457 30103213333