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68236743 = 343528967
BaseRepresentation
bin1000001000100…
…11010111000111
311202101210012210
410010103113013
5114432033433
610434314503
71456000641
oct404232707
9152353183
1068236743
1135577303
121aa28a33
13111a2093
1490c3891
155ecd463
hex41135c7

68236743 has 8 divisors (see below), whose sum is σ = 93098368. Its totient is φ = 44433144.

The previous prime is 68236741. The next prime is 68236747. The reversal of 68236743 is 34763286.

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

It is not a de Polignac number, because 68236743 - 21 = 68236741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68236741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264355 + ... + 264612.

It is an arithmetic number, because the mean of its divisors is an integer number (11637296).

Almost surely, 268236743 is an apocalyptic number.

68236743 is a deficient number, since it is larger than the sum of its proper divisors (24861625).

68236743 is a wasteful number, since it uses less digits than its factorization.

68236743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529013.

The product of its digits is 145152, while the sum is 39.

The square root of 68236743 is about 8260.5534318228. The cubic root of 68236743 is about 408.6386396222.

The spelling of 68236743 in words is "sixty-eight million, two hundred thirty-six thousand, seven hundred forty-three".

Divisors: 1 3 43 129 528967 1586901 22745581 68236743