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30265220466 = 23213137944077
BaseRepresentation
bin11100001011111100…
…101001110101110010
32220010020100111110100
4130023330221311302
5443440344023331
621523104413230
72121000062235
oct341374516562
986106314410
1030265220466
1111920a230a8
125a47917216
132b143065a0
14167176741c
15bc2067ae6
hex70bf29d72

30265220466 has 48 divisors (see below), whose sum is σ = 71134389144. Its totient is φ = 9244392192.

The previous prime is 30265220449. The next prime is 30265220507. The reversal of 30265220466 is 66402256203.

It can be written as a sum of positive squares in 4 ways, for example, as 11790702225 + 18474518241 = 108585^2 + 135921^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30265220466.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 439981 + ... + 504096.

Almost surely, 230265220466 is an apocalyptic number.

30265220466 is an abundant number, since it is smaller than the sum of its proper divisors (40869168678).

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

30265220466 is a wasteful number, since it uses less digits than its factorization.

30265220466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944235 (or 944232 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 30265220466 its reverse (66402256203), we get a palindrome (96667476669).

The spelling of 30265220466 in words is "thirty billion, two hundred sixty-five million, two hundred twenty thousand, four hundred sixty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 137 234 274 411 822 1233 1781 2466 3562 5343 10686 16029 32058 944077 1888154 2832231 5664462 8496693 12273001 16993386 24546002 36819003 73638006 110457009 129338549 220914018 258677098 388015647 776031294 1164046941 1681401137 2328093882 3362802274 5044203411 10088406822 15132610233 30265220466