Search a number
-
+
12887403252337 = 197243197268993
BaseRepresentation
bin1011101110001001010100…
…0101111100101001110001
31200122000122021212002210001
42323202111011330221301
53142121400213033322
643224220305310001
72500040603134135
oct273422505745161
950560567762701
1012887403252337
114119576186739
1215417b9335301
1372637a4b6a43
14327a7a0093c5
1517536e602827
hexbb89517ca71

12887403252337 has 8 divisors (see below), whose sum is σ = 12952922956776. Its totient is φ = 12821884572672.

The previous prime is 12887403252331. The next prime is 12887403252359. The reversal of 12887403252337 is 73325230478821.

It can be written as a sum of positive squares in 4 ways, for example, as 6885118850401 + 6002284401936 = 2623951^2 + 2449956^2 .

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 12887403252337 - 27 = 12887403252209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12887403252331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47775313 + ... + 48044305.

It is an arithmetic number, because the mean of its divisors is an integer number (1619115369597).

Almost surely, 212887403252337 is an apocalyptic number.

It is an amenable number.

12887403252337 is a deficient number, since it is larger than the sum of its proper divisors (65519704439).

12887403252337 is a wasteful number, since it uses less digits than its factorization.

12887403252337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512387.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 12887403252337 in words is "twelve trillion, eight hundred eighty-seven billion, four hundred three million, two hundred fifty-two thousand, three hundred thirty-seven".

Divisors: 1 197 243197 268993 47909809 52991621 65418290621 12887403252337