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12047930 = 258913537
BaseRepresentation
bin101101111101…
…011000111010
3211200002122122
4231331120322
511041013210
61110121242
7204256106
oct55753072
924602578
1012047930
116889874
124050222
13265aa6b
141858906
1510ceb55
hexb7d63a

12047930 has 16 divisors (see below), whose sum is σ = 21931560. Its totient is φ = 4764672.

The previous prime is 12047921. The next prime is 12047941. The reversal of 12047930 is 3974021.

It can be written as a sum of positive squares in 4 ways, for example, as 10896601 + 1151329 = 3301^2 + 1073^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12047930.

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, 5879 + ... + 7658.

Almost surely, 212047930 is an apocalyptic number.

12047930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12047930 is a deficient number, since it is larger than the sum of its proper divisors (9883630).

12047930 is a wasteful number, since it uses less digits than its factorization.

12047930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13633.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12047930 is about 3471.0128204891. The cubic root of 12047930 is about 229.2472555502.

The spelling of 12047930 in words is "twelve million, forty-seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 13537 27074 67685 135370 1204793 2409586 6023965 12047930