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68730110 = 256873011
BaseRepresentation
bin1000001100010…
…11110011111110
311210022211222122
410012023303332
5120043330420
610453042542
71463124221
oct406136376
9153284878
1068730110
1135883a49
121b026452
1311315807
1491b15b8
156079725
hex418bcfe

68730110 has 8 divisors (see below), whose sum is σ = 123714216. Its totient is φ = 27492040.

The previous prime is 68730097. The next prime is 68730113. The reversal of 68730110 is 1103786.

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

It is a super-2 number, since 2×687301102 = 9447656041224200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68730110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68730113) 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, 3436496 + ... + 3436515.

It is an arithmetic number, because the mean of its divisors is an integer number (15464277).

Almost surely, 268730110 is an apocalyptic number.

68730110 is a deficient number, since it is larger than the sum of its proper divisors (54984106).

68730110 is a wasteful number, since it uses less digits than its factorization.

68730110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6873018.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 68730110 is about 8290.3624769970. The cubic root of 68730110 is about 409.6211253079.

Adding to 68730110 its reverse (1103786), we get a palindrome (69833896).

The spelling of 68730110 in words is "sixty-eight million, seven hundred thirty thousand, one hundred ten".

Divisors: 1 2 5 10 6873011 13746022 34365055 68730110