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30231302312 = 235389970111
BaseRepresentation
bin11100001001111011…
…010001000010101000
32220000212112021111102
4130021323101002220
5443403203133222
621515453420532
72120105554421
oct341173210250
986025467442
1030231302312
1111903866972
125a3849a748
132b0a28c083
14166b058648
15bbe0b7d92
hex709ed10a8

30231302312 has 16 divisors (see below), whose sum is σ = 56685552000. Its totient is φ = 15115155120.

The previous prime is 30231302243. The next prime is 30231302323. The reversal of 30231302312 is 21320313203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396137 + ... + 466247.

It is an arithmetic number, because the mean of its divisors is an integer number (3542847000).

Almost surely, 230231302312 is an apocalyptic number.

It is an amenable number.

30231302312 is a deficient number, since it is larger than the sum of its proper divisors (26454249688).

30231302312 is a wasteful number, since it uses less digits than its factorization.

30231302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124016 (or 124012 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30231302312 its reverse (21320313203), we get a palindrome (51551615515).

The spelling of 30231302312 in words is "thirty billion, two hundred thirty-one million, three hundred two thousand, three hundred twelve".

Divisors: 1 2 4 8 53899 70111 107798 140222 215596 280444 431192 560888 3778912789 7557825578 15115651156 30231302312