Search a number
-
+
12707634671431 = 71815376381633
BaseRepresentation
bin1011100011101011101000…
…0011001110111101000111
31122222211121220112222211221
42320322322003032331013
53131200213433441211
643005450132541211
72451045014330230
oct270727203167507
948884556488757
1012707634671431
11405a306537107
1215129a9181807
1371242b7aa68b
1431d0a4c50087
1517084c3acc71
hexb8eba0cef47

12707634671431 has 4 divisors (see below), whose sum is σ = 14523011053072. Its totient is φ = 10892258289792.

The previous prime is 12707634671411. The next prime is 12707634671533. The reversal of 12707634671431 is 13417643670721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12707634671431 is a prime.

It is a super-2 number, since 2×127076346714312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707634671411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907688190810 + ... + 907688190823.

It is an arithmetic number, because the mean of its divisors is an integer number (3630752763268).

Almost surely, 212707634671431 is an apocalyptic number.

12707634671431 is a deficient number, since it is larger than the sum of its proper divisors (1815376381641).

12707634671431 is an equidigital number, since it uses as much as digits as its factorization.

12707634671431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815376381640.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 12707634671431 in words is "twelve trillion, seven hundred seven billion, six hundred thirty-four million, six hundred seventy-one thousand, four hundred thirty-one".

Divisors: 1 7 1815376381633 12707634671431