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12930452007 = 3116710356779
BaseRepresentation
bin11000000101011011…
…10000101000100111
31020101010221000112220
430002231300220213
5202440143431012
65535024243423
7635300012544
oct140255605047
936333830486
1012930452007
1155359a2a80
12260a470573
1312b0b60b45
148a9423bcb
1550a2b508c
hex302b70a27

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".

Divisors: 1 3 11 33 67 103 201 309 737 1133 2211 3399 6901 20703 56779 75911 170337 227733 624569 1873707 3804193 5848237 11412579 17544711 41846123 64330607 125538369 192991821 391831879 1175495637 4310150669 12930452007