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68974743 = 383277007
BaseRepresentation
bin1000001110001…
…11100010010111
311210210021120010
410013013202113
5120124142433
610502211303
71465163355
oct407074227
9153707503
1068974743
1135a30822
121b123b33
131139cc76
1492367d5
1560c6e63
hex41c7897

68974743 has 8 divisors (see below), whose sum is σ = 93074688. Its totient is φ = 45428984.

The previous prime is 68974727. The next prime is 68974747. The reversal of 68974743 is 34747986.

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 68974743 - 24 = 68974727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68974692 and 68974701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68974747) 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 7 ways as a sum of consecutive naturals, for example, 138255 + ... + 138752.

It is an arithmetic number, because the mean of its divisors is an integer number (11634336).

Almost surely, 268974743 is an apocalyptic number.

68974743 is a deficient number, since it is larger than the sum of its proper divisors (24099945).

68974743 is a wasteful number, since it uses less digits than its factorization.

68974743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277093.

The product of its digits is 1016064, while the sum is 48.

The square root of 68974743 is about 8305.1034310236. The cubic root of 68974743 is about 410.1065418141.

The spelling of 68974743 in words is "sixty-eight million, nine hundred seventy-four thousand, seven hundred forty-three".

Divisors: 1 3 83 249 277007 831021 22991581 68974743