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76106729 = 237132099
BaseRepresentation
bin1001000100101…
…00101111101001
312022012121210202
410202110233221
5123440403404
611315121545
71612616336
oct442245751
9168177722
1076106729
1139a62126
12215a32b5
13129c928a
14a17198d
156a3521e
hex4894be9

76106729 has 4 divisors (see below), whose sum is σ = 76141200. Its totient is φ = 76072260.

The previous prime is 76106717. The next prime is 76106731. The reversal of 76106729 is 92760167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92760167 = 148362549.

It is a cyclic number.

It is not a de Polignac number, because 76106729 - 216 = 76041193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 76106692 and 76106701.

It is not an unprimeable number, because it can be changed into a prime (76106929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13679 + ... + 18420.

It is an arithmetic number, because the mean of its divisors is an integer number (19035300).

Almost surely, 276106729 is an apocalyptic number.

It is an amenable number.

76106729 is a deficient number, since it is larger than the sum of its proper divisors (34471).

76106729 is a wasteful number, since it uses less digits than its factorization.

76106729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34470.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 76106729 is about 8723.9170674646. The cubic root of 76106729 is about 423.7805486688.

The spelling of 76106729 in words is "seventy-six million, one hundred six thousand, seven hundred twenty-nine".

Divisors: 1 2371 32099 76106729