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68301973 = 232969651
BaseRepresentation
bin1000001001000…
…11010010010101
311202112002200201
410010203102111
5114441130343
610435540501
71456362055
oct404432225
9152462621
1068301973
1135611313
121aa5a731
13111c598c
1490dd565
155ee294d
hex4123495

68301973 has 4 divisors (see below), whose sum is σ = 71271648. Its totient is φ = 65332300.

The previous prime is 68301967. The next prime is 68301977. The reversal of 68301973 is 37910386.

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 68301973 - 213 = 68293781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68301977) 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, 1484803 + ... + 1484848.

It is an arithmetic number, because the mean of its divisors is an integer number (17817912).

Almost surely, 268301973 is an apocalyptic number.

It is an amenable number.

68301973 is a deficient number, since it is larger than the sum of its proper divisors (2969675).

68301973 is a wasteful number, since it uses less digits than its factorization.

68301973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969674.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 68301973 is about 8264.5007713715. The cubic root of 68301973 is about 408.7688090301.

The spelling of 68301973 in words is "sixty-eight million, three hundred one thousand, nine hundred seventy-three".

Divisors: 1 23 2969651 68301973