Search a number
-
+
68053849 = 232958863
BaseRepresentation
bin1000000111001…
…10101101011001
311202001111022221
410003212231121
5114410210344
610430344041
71454306503
oct403465531
9152044287
1068053849
1135461956
121a95b021
1311139a66
149076d73
155e94184
hex40e6b59

68053849 has 4 divisors (see below), whose sum is σ = 71012736. Its totient is φ = 65094964.

The previous prime is 68053837. The next prime is 68053861. The reversal of 68053849 is 94835086.

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 an interprime number because it is at equal distance from previous prime (68053837) and next prime (68053861).

It is a cyclic number.

It is not a de Polignac number, because 68053849 - 27 = 68053721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68053549) 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, 1479409 + ... + 1479454.

It is an arithmetic number, because the mean of its divisors is an integer number (17753184).

Almost surely, 268053849 is an apocalyptic number.

It is an amenable number.

68053849 is a deficient number, since it is larger than the sum of its proper divisors (2958887).

68053849 is a wasteful number, since it uses less digits than its factorization.

68053849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958886.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 68053849 is about 8249.4756803084. The cubic root of 68053849 is about 408.2732234531.

The spelling of 68053849 in words is "sixty-eight million, fifty-three thousand, eight hundred forty-nine".

Divisors: 1 23 2958863 68053849