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30212300312 = 23171032156789
BaseRepresentation
bin11100001000110010…
…110001111000011000
32212222112202212122122
4130020302301320120
5443333322102222
621513534240412
72116455213125
oct341062617030
985875685578
1030212300312
11118a4068437
125a32056108
132b06367c9c
14166870d74c
15bbc5b2a42
hex708cb1e18

30212300312 has 32 divisors (see below), whose sum is σ = 60562663200. Its totient is φ = 14079512064.

The previous prime is 30212300291. The next prime is 30212300413. The reversal of 30212300312 is 21300321203.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064387 + ... + 1092402.

It is an arithmetic number, because the mean of its divisors is an integer number (1892583225).

Almost surely, 230212300312 is an apocalyptic number.

It is an amenable number.

30212300312 is an abundant number, since it is smaller than the sum of its proper divisors (30350362888).

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

30212300312 is a wasteful number, since it uses less digits than its factorization.

30212300312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156915 (or 2156911 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30212300312 its reverse (21300321203), we get a palindrome (51512621515).

The spelling of 30212300312 in words is "thirty billion, two hundred twelve million, three hundred thousand, three hundred twelve".

Divisors: 1 2 4 8 17 34 68 103 136 206 412 824 1751 3502 7004 14008 2156789 4313578 8627156 17254312 36665413 73330826 146661652 222149267 293323304 444298534 888597068 1777194136 3776537539 7553075078 15106150156 30212300312