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68134758 = 2313782889
BaseRepresentation
bin1000000111110…
…10011101100110
311202012121022120
410003322131212
5114420303013
610432210410
71455064416
oct403723546
9152177276
1068134758
113550771a
121a999a06
1311167833
149098646
155ead123
hex40fa766

68134758 has 16 divisors (see below), whose sum is σ = 137265840. Its totient is φ = 22545536.

The previous prime is 68134757. The next prime is 68134771. The reversal of 68134758 is 85743186.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68134757) 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, 40623 + ... + 42266.

It is an arithmetic number, because the mean of its divisors is an integer number (8579115).

Almost surely, 268134758 is an apocalyptic number.

68134758 is an abundant number, since it is smaller than the sum of its proper divisors (69131082).

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

68134758 is a wasteful number, since it uses less digits than its factorization.

68134758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83031.

The product of its digits is 161280, while the sum is 42.

The square root of 68134758 is about 8254.3781110390. The cubic root of 68134758 is about 408.4349576114.

The spelling of 68134758 in words is "sixty-eight million, one hundred thirty-four thousand, seven hundred fifty-eight".

Divisors: 1 2 3 6 137 274 411 822 82889 165778 248667 497334 11355793 22711586 34067379 68134758