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30000013112 = 233750001639
BaseRepresentation
bin11011111100001000…
…111101111100111000
32212102202022120100202
4123330020331330320
5442420000404422
621440512221332
72111266622036
oct337410757470
985382276322
1030000013112
11117a5252973
125992b3a848
132aa139b064
14164844d556
15ba8b2cb92
hex6fc23df38

30000013112 has 8 divisors (see below), whose sum is σ = 56250024600. Its totient is φ = 15000006552.

The previous prime is 30000013051. The next prime is 30000013123. The reversal of 30000013112 is 21131000003.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 30000013093 and 30000013102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1875000812 + ... + 1875000827.

It is an arithmetic number, because the mean of its divisors is an integer number (7031253075).

Almost surely, 230000013112 is an apocalyptic number.

It is an amenable number.

30000013112 is a deficient number, since it is larger than the sum of its proper divisors (26250011488).

30000013112 is a wasteful number, since it uses less digits than its factorization.

30000013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750001645 (or 3750001641 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 30000013112 its reverse (21131000003), we get a palindrome (51131013115).

The spelling of 30000013112 in words is "thirty billion, thirteen thousand, one hundred twelve".

Divisors: 1 2 4 8 3750001639 7500003278 15000006556 30000013112