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68763742 = 2178532371
BaseRepresentation
bin1000001100101…
…00000001011110
311210101120010021
410012110001132
5120100414432
610453502354
71463324245
oct406240136
9153346107
1068763742
11358a7243
121b0419ba
1311327c08
1491bd95c
156084697
hex419405e

68763742 has 16 divisors (see below), whose sum is σ = 109387152. Its totient is φ = 32307840.

The previous prime is 68763731. The next prime is 68763743. The reversal of 68763742 is 24736786.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68763743) 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, 27817 + ... + 30187.

It is an arithmetic number, because the mean of its divisors is an integer number (6836697).

Almost surely, 268763742 is an apocalyptic number.

68763742 is a deficient number, since it is larger than the sum of its proper divisors (40623410).

68763742 is a wasteful number, since it uses less digits than its factorization.

68763742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243.

The product of its digits is 338688, while the sum is 43.

The square root of 68763742 is about 8292.3906082625. The cubic root of 68763742 is about 409.6879283011.

The spelling of 68763742 in words is "sixty-eight million, seven hundred sixty-three thousand, seven hundred forty-two".

Divisors: 1 2 17 34 853 1706 2371 4742 14501 29002 40307 80614 2022463 4044926 34381871 68763742