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768142005 = 3551209467
BaseRepresentation
bin101101110010001…
…110101010110101
31222112101122201220
4231302032222311
53033121021010
6204115540553
725015046031
oct5562165265
91875348656
10768142005
11364661504
121952ba759
13c31aa2c7
14740351c1
1547682970
hex2dc8eab5

768142005 has 8 divisors (see below), whose sum is σ = 1229027232. Its totient is φ = 409675728.

The previous prime is 768142003. The next prime is 768142007. The reversal of 768142005 is 500241867.

It is an interprime number because it is at equal distance from previous prime (768142003) and next prime (768142007).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 768142005 - 21 = 768142003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768142003) 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 7 ways as a sum of consecutive naturals, for example, 25604719 + ... + 25604748.

It is an arithmetic number, because the mean of its divisors is an integer number (153628404).

Almost surely, 2768142005 is an apocalyptic number.

It is an amenable number.

768142005 is a deficient number, since it is larger than the sum of its proper divisors (460885227).

768142005 is a wasteful number, since it uses less digits than its factorization.

768142005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51209475.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 768142005 is about 27715.3748847098. The cubic root of 768142005 is about 915.8278333233.

The spelling of 768142005 in words is "seven hundred sixty-eight million, one hundred forty-two thousand, five".

Divisors: 1 3 5 15 51209467 153628401 256047335 768142005