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30222123312 = 2431514169719
BaseRepresentation
bin11100001001011000…
…010000000100110000
32220000020020221021110
4130021120100010300
5443343330421222
621514524553320
72116634544453
oct341130200460
986006227243
1030222123312
11118a9667617
125a353b2840
132b083c7104
141669b4949a
15bbd3a330c
hex709610130

30222123312 has 40 divisors (see below), whose sum is σ = 78590882560. Its totient is φ = 10007323200.

The previous prime is 30222123301. The next prime is 30222123313. The reversal of 30222123312 is 21332122203.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30222123313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077612 + ... + 2092107.

It is an arithmetic number, because the mean of its divisors is an integer number (1964772064).

Almost surely, 230222123312 is an apocalyptic number.

It is an amenable number.

30222123312 is an abundant number, since it is smaller than the sum of its proper divisors (48368759248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30222123312 is a wasteful number, since it uses less digits than its factorization.

30222123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169881 (or 4169875 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30222123312 its reverse (21332122203), we get a palindrome (51554245515).

The spelling of 30222123312 in words is "thirty billion, two hundred twenty-two million, one hundred twenty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 151 302 453 604 906 1208 1812 2416 3624 7248 4169719 8339438 12509157 16678876 25018314 33357752 50036628 66715504 100073256 200146512 629627569 1259255138 1888882707 2518510276 3777765414 5037020552 7555530828 10074041104 15111061656 30222123312