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76865001 = 325621667
BaseRepresentation
bin1001001010011…
…01110111101001
312100122010221220
410211031313221
5124134140001
611343252253
71622225133
oct445156751
9170563856
1076865001
113a42a8a4
12218aa089
1312c03465
14a2cc053
156b34c36
hex494dde9

76865001 has 4 divisors (see below), whose sum is σ = 102486672. Its totient is φ = 51243332.

The previous prime is 76864981. The next prime is 76865003. The reversal of 76865001 is 10056867.

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: 10056867 = 33352289.

It is a cyclic number.

It is not a de Polignac number, because 76865001 - 25 = 76864969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76865003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12810831 + ... + 12810836.

It is an arithmetic number, because the mean of its divisors is an integer number (25621668).

Almost surely, 276865001 is an apocalyptic number.

It is an amenable number.

76865001 is a deficient number, since it is larger than the sum of its proper divisors (25621671).

76865001 is a wasteful number, since it uses less digits than its factorization.

76865001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25621670.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 76865001 is about 8767.2687309104. The cubic root of 76865001 is about 425.1833137694.

The spelling of 76865001 in words is "seventy-six million, eight hundred sixty-five thousand, one".

Divisors: 1 3 25621667 76865001