Search a number
-
+
1078768830449 = 4196012740489
BaseRepresentation
bin11111011001010111010…
…00100000011111110001
310211010111020212121100202
433230223220200133301
5120133304310033244
62143325103524545
7140636616523022
oct17545350403761
93733436777322
101078768830449
11386559977082
121550a55b9755
137a95c314a5b
143a2d989ac49
151d0dbade04e
hexfb2ba207f1

1078768830449 has 8 divisors (see below), whose sum is σ = 1105195769160. Its totient is φ = 1052347392000.

The previous prime is 1078768830437. The next prime is 1078768830487. The reversal of 1078768830449 is 9440388678701.

It can be written as a sum of positive squares in 4 ways, for example, as 774620224 + 1077994210225 = 27832^2 + 1038265^2 .

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 1078768830449 - 28 = 1078768830193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078768830499) 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, 976604 + ... + 1763885.

It is an arithmetic number, because the mean of its divisors is an integer number (138149471145).

Almost surely, 21078768830449 is an apocalyptic number.

It is an amenable number.

1078768830449 is a deficient number, since it is larger than the sum of its proper divisors (26426938711).

1078768830449 is an equidigital number, since it uses as much as digits as its factorization.

1078768830449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750131.

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 1078768830449 in words is "one trillion, seventy-eight billion, seven hundred sixty-eight million, eight hundred thirty thousand, four hundred forty-nine".

Divisors: 1 41 9601 393641 2740489 112360049 26311434889 1078768830449