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68723150 = 2522934691
BaseRepresentation
bin1000001100010…
…10000111001110
311210022111102212
410012022013032
5120043120100
610452550422
71463065016
oct406120716
9153274385
1068723150
11358797a1
121b022412
13113125b2
1491acc46
156077635
hex418a1ce

68723150 has 24 divisors (see below), whose sum is σ = 128288664. Its totient is φ = 27389600.

The previous prime is 68723147. The next prime is 68723167. The reversal of 68723150 is 5132786.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12305 + ... + 16995.

It is an arithmetic number, because the mean of its divisors is an integer number (5345361).

Almost surely, 268723150 is an apocalyptic number.

68723150 is a deficient number, since it is larger than the sum of its proper divisors (59565514).

68723150 is a wasteful number, since it uses less digits than its factorization.

68723150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 68723150 is about 8289.9427018526. The cubic root of 68723150 is about 409.6072979898.

The spelling of 68723150 in words is "sixty-eight million, seven hundred twenty-three thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 293 586 1465 2930 4691 7325 9382 14650 23455 46910 117275 234550 1374463 2748926 6872315 13744630 34361575 68723150