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30001012 = 2241182933
BaseRepresentation
bin111001001110…
…0011101110100
32002110012122121
41302130131310
530140013022
62551005324
7513001336
oct162343564
962405577
1030001012
1115a31228
12a069844
1362a55a2
143dad456
1529792c7
hex1c9c774

30001012 has 12 divisors (see below), whose sum is σ = 53782596. Its totient is φ = 14634560.

The previous prime is 30001009. The next prime is 30001031. The reversal of 30001012 is 21010003.

It can be written as a sum of positive squares in 2 ways, for example, as 4639716 + 25361296 = 2154^2 + 5036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30000986 and 30001004.

It is a congruent number.

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, 91303 + ... + 91630.

It is an arithmetic number, because the mean of its divisors is an integer number (4481883).

Almost surely, 230001012 is an apocalyptic number.

It is an amenable number.

30001012 is a deficient number, since it is larger than the sum of its proper divisors (23781584).

30001012 is a wasteful number, since it uses less digits than its factorization.

30001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182978 (or 182976 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 30001012 is about 5477.3179568106. The cubic root of 30001012 is about 310.7267444664.

Adding to 30001012 its reverse (21010003), we get a palindrome (51011015).

The spelling of 30001012 in words is "thirty million, one thousand, twelve".

Divisors: 1 2 4 41 82 164 182933 365866 731732 7500253 15000506 30001012