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30223003212 = 22321994218733
BaseRepresentation
bin11100001001011011…
…100110111001001100
32220000021220122021100
4130021123212321030
5443344042100322
621514555503100
72116645200663
oct341133467114
986007818240
1030223003212
11118aa108706
125a35757a90
132b0864476c
141669cd7dda
15bbd4c8dac
hex7096e6e4c

30223003212 has 36 divisors (see below), whose sum is σ = 76780958800. Its totient is φ = 10023707232.

The previous prime is 30223003207. The next prime is 30223003243. The reversal of 30223003212 is 21230032203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2102203 + ... + 2116530.

Almost surely, 230223003212 is an apocalyptic number.

It is an amenable number.

30223003212 is an abundant number, since it is smaller than the sum of its proper divisors (46557955588).

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

30223003212 is a wasteful number, since it uses less digits than its factorization.

30223003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218942 (or 4218937 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30223003212 its reverse (21230032203), we get a palindrome (51453035415).

The spelling of 30223003212 in words is "thirty billion, two hundred twenty-three million, three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 199 398 597 796 1194 1791 2388 3582 7164 4218733 8437466 12656199 16874932 25312398 37968597 50624796 75937194 151874388 839527867 1679055734 2518583601 3358111468 5037167202 7555750803 10074334404 15111501606 30223003212