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75668803 = 710809829
BaseRepresentation
bin1001000001010…
…01110101000011
312021101101002021
410200221311003
5123332400203
611301502311
71606113520
oct440516503
9167341067
1075668803
1139793101
1221411997
13128a4b52
14a09a147
15699a5bd
hex4829d43

75668803 has 4 divisors (see below), whose sum is σ = 86478640. Its totient is φ = 64858968.

The previous prime is 75668797. The next prime is 75668833. The reversal of 75668803 is 30886657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30886657 = 149207293.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75668803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75668803.

It is not an unprimeable number, because it can be changed into a prime (75668833) 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, 5404908 + ... + 5404921.

It is an arithmetic number, because the mean of its divisors is an integer number (21619660).

Almost surely, 275668803 is an apocalyptic number.

75668803 is a deficient number, since it is larger than the sum of its proper divisors (10809837).

75668803 is a wasteful number, since it uses less digits than its factorization.

75668803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809836.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 75668803 is about 8698.7816963067. The cubic root of 75668803 is about 422.9661589173.

The spelling of 75668803 in words is "seventy-five million, six hundred sixty-eight thousand, eight hundred three".

Divisors: 1 7 10809829 75668803