Search a number
-
+
30323102212 = 22131953579083
BaseRepresentation
bin11100001111011001…
…011101001000000100
32220021021021012021201
4130033121131020010
5444100203232322
621532533152244
72122302054544
oct341731351004
986237235251
1030323102212
1111950667557
125a6318b684
132b232c1340
141679313324
15bc719cd27
hex70f65d204

30323102212 has 48 divisors (see below), whose sum is σ = 61290250560. Its totient is φ = 13008498048.

The previous prime is 30323102209. The next prime is 30323102221. The reversal of 30323102212 is 21220132303.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 30323102212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237178 + ... + 341905.

It is an arithmetic number, because the mean of its divisors is an integer number (1276880220).

Almost surely, 230323102212 is an apocalyptic number.

It is an amenable number.

30323102212 is an abundant number, since it is smaller than the sum of its proper divisors (30967148348).

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

30323102212 is a wasteful number, since it uses less digits than its factorization.

30323102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579172 (or 579170 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30323102212 its reverse (21220132303), we get a palindrome (51543234515).

The spelling of 30323102212 in words is "thirty billion, three hundred twenty-three million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 13 19 26 38 52 53 76 106 212 247 494 689 988 1007 1378 2014 2756 4028 13091 26182 52364 579083 1158166 2316332 7528079 11002577 15056158 22005154 30112316 30691399 44010308 61382798 122765596 143033501 286067002 398988187 572134004 583136581 797976374 1166273162 1595952748 2332546324 7580775553 15161551106 30323102212