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68706433 = 471499811
BaseRepresentation
bin1000001100001…
…10000010000001
311210021122111201
410012012002001
5120042101213
610452341201
71462665205
oct406060201
9153248451
1068706433
1135868184
121b014801
1311307ac3
1491a6b05
1560726dd
hex4186081

68706433 has 8 divisors (see below), whose sum is σ = 70646400. Its totient is φ = 66786480.

The previous prime is 68706427. The next prime is 68706461. The reversal of 68706433 is 33460786.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68706433 - 225 = 35152001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68706392 and 68706401.

It is not an unprimeable number, because it can be changed into a prime (68706403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2098 + ... + 11908.

It is an arithmetic number, because the mean of its divisors is an integer number (8830800).

Almost surely, 268706433 is an apocalyptic number.

It is an amenable number.

68706433 is a deficient number, since it is larger than the sum of its proper divisors (1939967).

68706433 is a wasteful number, since it uses less digits than its factorization.

68706433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10007.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 68706433 is about 8288.9343705931. The cubic root of 68706433 is about 409.5740827851.

The spelling of 68706433 in words is "sixty-eight million, seven hundred six thousand, four hundred thirty-three".

Divisors: 1 47 149 7003 9811 461117 1461839 68706433