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68750742 = 2311458457
BaseRepresentation
bin1000001100100…
…00110110010110
311210100220021210
410012100312112
5120100010432
610453322250
71463241324
oct406206626
9153326253
1068750742
11358984a5
121b036386
1311322018
1491b8d14
1560808cc
hex4190d96

68750742 has 8 divisors (see below), whose sum is σ = 137501496. Its totient is φ = 22916912.

The previous prime is 68750741. The next prime is 68750761. The reversal of 68750742 is 24705786.

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

68750742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 68750742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68750741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5729223 + ... + 5729234.

It is an arithmetic number, because the mean of its divisors is an integer number (17187687).

Almost surely, 268750742 is an apocalyptic number.

68750742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68750742 is a wasteful number, since it uses less digits than its factorization.

68750742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458462.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 68750742 is about 8291.6067200513. The cubic root of 68750742 is about 409.6621090802.

The spelling of 68750742 in words is "sixty-eight million, seven hundred fifty thousand, seven hundred forty-two".

Divisors: 1 2 3 6 11458457 22916914 34375371 68750742