Base | Representation |
---|---|
bin | 11000000101011011… |
… | …10000101000100111 |
3 | 1020101010221000112220 |
4 | 30002231300220213 |
5 | 202440143431012 |
6 | 5535024243423 |
7 | 635300012544 |
oct | 140255605047 |
9 | 36333830486 |
10 | 12930452007 |
11 | 55359a2a80 |
12 | 260a470573 |
13 | 12b0b60b45 |
14 | 8a9423bcb |
15 | 50a2b508c |
hex | 302b70a27 |
12930452007 has 32 divisors (see below), whose sum is σ = 19274311680. Its totient is φ = 7644589920.
The previous prime is 12930451997. The next prime is 12930452009. The reversal of 12930452007 is 70025403921.
It is not a de Polignac number, because 12930452007 - 219 = 12929927719 is a prime.
It is a super-3 number, since 3×129304520073 (a number of 31 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12930452009) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199344 + ... + 256122.
It is an arithmetic number, because the mean of its divisors is an integer number (602322240).
Almost surely, 212930452007 is an apocalyptic number.
12930452007 is a deficient number, since it is larger than the sum of its proper divisors (6343859673).
12930452007 is a wasteful number, since it uses less digits than its factorization.
12930452007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56963.
The product of its (nonzero) digits is 15120, while the sum is 33.
Adding to 12930452007 its reverse (70025403921), we get a palindrome (82955855928).
The spelling of 12930452007 in words is "twelve billion, nine hundred thirty million, four hundred fifty-two thousand, seven".
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