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30121223303 = 4116339711353
BaseRepresentation
bin11100000011010111…
…010110010010000111
32212202012101200111002
4130003113112102013
5443142013121203
621500522203515
72114301113363
oct340327262207
985665350432
1030121223303
1111857710986
125a0765359b
132ac0529a72
14165a5a22a3
15bb45c1d88
hex7035d6487

30121223303 has 16 divisors (see below), whose sum is σ = 31126128096. Its totient is φ = 29130140160.

The previous prime is 30121223291. The next prime is 30121223323. The reversal of 30121223303 is 30332212103.

It is a cyclic number.

It is not a de Polignac number, because 30121223303 - 26 = 30121223239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121223323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647475 + ... + 2658827.

It is an arithmetic number, because the mean of its divisors is an integer number (1945383006).

Almost surely, 230121223303 is an apocalyptic number.

30121223303 is a deficient number, since it is larger than the sum of its proper divisors (1004904793).

30121223303 is a wasteful number, since it uses less digits than its factorization.

30121223303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11954.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30121223303 its reverse (30332212103), we get a palindrome (60453435406).

The spelling of 30121223303 in words is "thirty billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred three".

Divisors: 1 41 163 397 6683 11353 16277 64711 465473 1850539 2653151 4507141 75872099 184792781 734663983 30121223303