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768460145 = 5153692029
BaseRepresentation
bin101101110011011…
…100010101110001
31222112222211010212
4231303130111301
53033211211040
6204130433505
725020542405
oct5563342561
91875884125
10768460145
11364859532
12195432895
13c328c05b
14740b9105
15476e6d65
hex2dcdc571

768460145 has 4 divisors (see below), whose sum is σ = 922152180. Its totient is φ = 614768112.

The previous prime is 768460117. The next prime is 768460151. The reversal of 768460145 is 541064867.

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

It can be written as a sum of positive squares in 2 ways, for example, as 307756849 + 460703296 = 17543^2 + 21464^2 .

It is a cyclic number.

It is not a de Polignac number, because 768460145 - 210 = 768459121 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 76846010 + ... + 76846019.

It is an arithmetic number, because the mean of its divisors is an integer number (230538045).

Almost surely, 2768460145 is an apocalyptic number.

It is an amenable number.

768460145 is a deficient number, since it is larger than the sum of its proper divisors (153692035).

768460145 is a wasteful number, since it uses less digits than its factorization.

768460145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153692034.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 768460145 is about 27721.1137041786. The cubic root of 768460145 is about 915.9542514638.

The spelling of 768460145 in words is "seven hundred sixty-eight million, four hundred sixty thousand, one hundred forty-five".

Divisors: 1 5 153692029 768460145