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30220030212 = 22317792118887
BaseRepresentation
bin11100001001010000…
…010001000100000100
32220000002022121002020
4130021100101010010
5443342311431322
621514412043140
72116611006231
oct341120210404
986002277066
1030220030212
11118a8467a89
125a347634b0
132b07b434a8
141669762788
15bbd0dd05c
hex709411104

30220030212 has 96 divisors (see below), whose sum is σ = 75973201920. Its totient is φ = 9315371520.

The previous prime is 30220030177. The next prime is 30220030279. The reversal of 30220030212 is 21203002203.

It is a junction number, because it is equal to n+sod(n) for n = 30220030191 and 30220030200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3396033 + ... + 3404919.

It is an arithmetic number, because the mean of its divisors is an integer number (791387520).

Almost surely, 230220030212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30220030212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37986600960).

30220030212 is an abundant number, since it is smaller than the sum of its proper divisors (45753171708).

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

30220030212 is a wasteful number, since it uses less digits than its factorization.

30220030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9201 (or 9199 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30220030212 its reverse (21203002203), we get a palindrome (51423032415).

The spelling of 30220030212 in words is "thirty billion, two hundred twenty million, thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 79 102 158 204 211 237 316 422 474 633 844 948 1266 1343 2532 2686 3587 4029 5372 7174 8058 8887 10761 14348 16116 16669 17774 21522 26661 33338 35548 43044 50007 53322 66676 100014 106644 151079 200028 283373 302158 453237 566746 604316 702073 850119 906474 1133492 1404146 1700238 1812948 1875157 2106219 2808292 3400476 3750314 4212438 5625471 7500628 8424876 11250942 11935241 22501884 23870482 31877669 35805723 47740964 63755338 71611446 95633007 127510676 143222892 148137403 191266014 296274806 382532028 444412209 592549612 888824418 1777648836 2518335851 5036671702 7555007553 10073343404 15110015106 30220030212