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30002002312 = 234387215123
BaseRepresentation
bin11011111100010000…
…100011100110001000
32212102220001122000211
4123330100203212020
5442421003033222
621441023010504
72111322545332
oct337420434610
985386048024
1030002002312
11117a6391437
125993739a34
132aa19165b9
14164880a452
15ba8dc2277
hex6fc423988

30002002312 has 16 divisors (see below), whose sum is σ = 57561981840. Its totient is φ = 14652140496.

The previous prime is 30002002279. The next prime is 30002002313. The reversal of 30002002312 is 21320020003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30002002292 and 30002002301.

It is not an unprimeable number, because it can be changed into a prime (30002002313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43607218 + ... + 43607905.

It is an arithmetic number, because the mean of its divisors is an integer number (3597623865).

Almost surely, 230002002312 is an apocalyptic number.

It is an amenable number.

30002002312 is a deficient number, since it is larger than the sum of its proper divisors (27559979528).

30002002312 is a wasteful number, since it uses less digits than its factorization.

30002002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87215172 (or 87215168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30002002312 its reverse (21320020003), we get a palindrome (51322022315).

The spelling of 30002002312 in words is "thirty billion, two million, two thousand, three hundred twelve".

Divisors: 1 2 4 8 43 86 172 344 87215123 174430246 348860492 697720984 3750250289 7500500578 15001001156 30002002312