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30213232303 = 171777248959
BaseRepresentation
bin11100001000110110…
…010101011010101111
32212222121112020002211
4130020312111122233
5443334041413203
621514010231251
72116466144242
oct341066253257
985877466084
1030213232303
11118a4644681
125a32425527
132b06603267
1416688b3259
15bbc6e8c6d
hex708d956af

30213232303 has 4 divisors (see below), whose sum is σ = 31990481280. Its totient is φ = 28435983328.

The previous prime is 30213232267. The next prime is 30213232321. The reversal of 30213232303 is 30323231203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30323231203 = 191595959537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30213232303 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 (30213232393) 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, 888624463 + ... + 888624496.

It is an arithmetic number, because the mean of its divisors is an integer number (7997620320).

Almost surely, 230213232303 is an apocalyptic number.

30213232303 is a deficient number, since it is larger than the sum of its proper divisors (1777248977).

30213232303 is a wasteful number, since it uses less digits than its factorization.

30213232303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777248976.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 30213232303 its reverse (30323231203), we get a palindrome (60536463506).

The spelling of 30213232303 in words is "thirty billion, two hundred thirteen million, two hundred thirty-two thousand, three hundred three".

Divisors: 1 17 1777248959 30213232303