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12906977907 = 38575020217
BaseRepresentation
bin11000000010101000…
…01101101001110011
31020022111202102010210
430001110031221303
5202413141243112
65532425155203
7634563334125
oct140124155163
936274672123
1012906977907
11552371a59a
12260262bb03
1312a9032345
148a6273215
155081c9b3c
hex30150da73

12906977907 has 8 divisors (see below), whose sum is σ = 17229388176. Its totient is φ = 8594609792.

The previous prime is 12906977851. The next prime is 12906977927. The reversal of 12906977907 is 70977960921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12906977907 - 219 = 12906453619 is a prime.

It is a super-2 number, since 2×129069779072 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12906977927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2507538 + ... + 2512679.

It is an arithmetic number, because the mean of its divisors is an integer number (2153673522).

Almost surely, 212906977907 is an apocalyptic number.

12906977907 is a deficient number, since it is larger than the sum of its proper divisors (4322410269).

12906977907 is an equidigital number, since it uses as much as digits as its factorization.

12906977907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021077.

The product of its (nonzero) digits is 3000564, while the sum is 57.

The spelling of 12906977907 in words is "twelve billion, nine hundred six million, nine hundred seventy-seven thousand, nine hundred seven".

Divisors: 1 3 857 2571 5020217 15060651 4302325969 12906977907