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76128001 = 358321247
BaseRepresentation
bin1001000100110…
…01111100000001
312022020200222121
410202121330001
5123442044001
611315404241
71613035345
oct442317401
9168220877
1076128001
1139a77104
12215b3681
1312a05b71
14a179625
156a3b6a1
hex4899f01

76128001 has 4 divisors (see below), whose sum is σ = 76152832. Its totient is φ = 76103172.

The previous prime is 76127993. The next prime is 76128007. The reversal of 76128001 is 10082167.

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.

It is a cyclic number.

It is not a de Polignac number, because 76128001 - 23 = 76127993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76128007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7041 + ... + 14206.

It is an arithmetic number, because the mean of its divisors is an integer number (19038208).

Almost surely, 276128001 is an apocalyptic number.

It is an amenable number.

76128001 is a deficient number, since it is larger than the sum of its proper divisors (24831).

76128001 is a wasteful number, since it uses less digits than its factorization.

76128001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24830.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 76128001 is about 8725.1361593960. The cubic root of 76128001 is about 423.8200275262.

The spelling of 76128001 in words is "seventy-six million, one hundred twenty-eight thousand, one".

Divisors: 1 3583 21247 76128001