Search a number
-
+
68076571 = 359318947
BaseRepresentation
bin1000000111011…
…00010000011011
311202002122111111
410003230100123
5114411422241
610431041151
71454432653
oct403542033
9152078444
1068076571
1135477a32
121a9701b7
13111471c4
149081363
155e9ac81
hex40ec41b

68076571 has 4 divisors (see below), whose sum is σ = 68099112. Its totient is φ = 68054032.

The previous prime is 68076557. The next prime is 68076583. The reversal of 68076571 is 17567086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68076571 - 213 = 68068379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68076971) 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, 5881 + ... + 13066.

It is an arithmetic number, because the mean of its divisors is an integer number (17024778).

Almost surely, 268076571 is an apocalyptic number.

68076571 is a deficient number, since it is larger than the sum of its proper divisors (22541).

68076571 is a wasteful number, since it uses less digits than its factorization.

68076571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22540.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 68076571 is about 8250.8527438078. The cubic root of 68076571 is about 408.3186568467.

The spelling of 68076571 in words is "sixty-eight million, seventy-six thousand, five hundred seventy-one".

Divisors: 1 3593 18947 68076571