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68757742 = 291937409
BaseRepresentation
bin1000001100100…
…10100011101110
311210101020220001
410012102203232
5120100221432
610453414514
71463300614
oct406224356
9153336801
1068757742
11358a2789
121b03a43a
1311325271
1491bb6b4
1560829e7
hex41928ee

68757742 has 8 divisors (see below), whose sum is σ = 103251600. Its totient is φ = 34340544.

The previous prime is 68757691. The next prime is 68757743. The reversal of 68757742 is 24775786.

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

It is a junction number, because it is equal to n+sod(n) for n = 68757692 and 68757701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68757743) 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, 16867 + ... + 20542.

It is an arithmetic number, because the mean of its divisors is an integer number (12906450).

Almost surely, 268757742 is an apocalyptic number.

68757742 is a deficient number, since it is larger than the sum of its proper divisors (34493858).

68757742 is a wasteful number, since it uses less digits than its factorization.

68757742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38330.

The product of its digits is 658560, while the sum is 46.

The square root of 68757742 is about 8292.0288229118. The cubic root of 68757742 is about 409.6760121420.

The spelling of 68757742 in words is "sixty-eight million, seven hundred fifty-seven thousand, seven hundred forty-two".

Divisors: 1 2 919 1838 37409 74818 34378871 68757742