Search a number
-
+
12893650945 = 57368390027
BaseRepresentation
bin11000000001000010…
…11000000000000001
31020021120200022222121
430000201120000001
5202401233312240
65531231404241
7634342140040
oct140041300001
936246608877
1012893650945
11551714787a
1225ba083681
1312a6347376
148a45a4557
15506e4604a
hex300858001

12893650945 has 8 divisors (see below), whose sum is σ = 17682721344. Its totient is φ = 8841360624.

The previous prime is 12893650871. The next prime is 12893650993. The reversal of 12893650945 is 54905639821.

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 12893650945 - 29 = 12893650433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12893650892 and 12893650901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184194979 + ... + 184195048.

It is an arithmetic number, because the mean of its divisors is an integer number (2210340168).

Almost surely, 212893650945 is an apocalyptic number.

It is an amenable number.

12893650945 is a deficient number, since it is larger than the sum of its proper divisors (4789070399).

12893650945 is an equidigital number, since it uses as much as digits as its factorization.

12893650945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368390039.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 12893650945 in words is "twelve billion, eight hundred ninety-three million, six hundred fifty thousand, nine hundred forty-five".

Divisors: 1 5 7 35 368390027 1841950135 2578730189 12893650945