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68662738 = 239786477
BaseRepresentation
bin1000001011110…
…11010111010010
311210012102120101
410011323113102
5120034201423
610451403014
71462423624
oct405732722
9153172511
1068662738
1135838371
121abb346a
13112c0c51
149194c14
1560647ad
hex417b5d2

68662738 has 8 divisors (see below), whose sum is σ = 103254732. Its totient is φ = 34244496.

The previous prime is 68662721. The next prime is 68662753. The reversal of 68662738 is 83726686.

It can be written as a sum of positive squares in 2 ways, for example, as 64754209 + 3908529 = 8047^2 + 1977^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42445 + ... + 44032.

Almost surely, 268662738 is an apocalyptic number.

68662738 is a deficient number, since it is larger than the sum of its proper divisors (34591994).

68662738 is a wasteful number, since it uses less digits than its factorization.

68662738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86876.

The product of its digits is 580608, while the sum is 46.

The square root of 68662738 is about 8286.2982084885. The cubic root of 68662738 is about 409.4872392202.

It can be divided in two parts, 6866 and 2738, that added together give a square (9604 = 982).

The spelling of 68662738 in words is "sixty-eight million, six hundred sixty-two thousand, seven hundred thirty-eight".

Divisors: 1 2 397 794 86477 172954 34331369 68662738