Search a number
-
+
6801511451 = 7971644493
BaseRepresentation
bin1100101010110011…
…01101010000011011
3122120000020120200112
412111121231100123
5102412141331301
63042523554535
7330355615310
oct62531552033
918500216615
106801511451
112980304249
12139998ba4b
1384515a8b7
1448744cd07
1529c1ac9bb
hex19566d41b

6801511451 has 4 divisors (see below), whose sum is σ = 7773155952. Its totient is φ = 5829866952.

The previous prime is 6801511411. The next prime is 6801511459. The reversal of 6801511451 is 1541151086.

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

It is not a de Polignac number, because 6801511451 - 218 = 6801249307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6801511459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485822240 + ... + 485822253.

It is an arithmetic number, because the mean of its divisors is an integer number (1943288988).

Almost surely, 26801511451 is an apocalyptic number.

6801511451 is a deficient number, since it is larger than the sum of its proper divisors (971644501).

6801511451 is an equidigital number, since it uses as much as digits as its factorization.

6801511451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971644500.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 6801511451 is about 82471.2765209803. The cubic root of 6801511451 is about 1894.6768315736.

The spelling of 6801511451 in words is "six billion, eight hundred one million, five hundred eleven thousand, four hundred fifty-one".

Divisors: 1 7 971644493 6801511451