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68848661 = 735927397
BaseRepresentation
bin1000001101010…
…00110000010101
311210112212121102
410012220300111
5120111124121
610455355445
71464126650
oct406506025
9153485542
1068848661
1135955022
121b082b85
131135776b
149202897
15609e90b
hex41a8c15

68848661 has 8 divisors (see below), whose sum is σ = 78906240. Its totient is φ = 58846608.

The previous prime is 68848631. The next prime is 68848669. The reversal of 68848661 is 16684886.

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

It is a cyclic number.

It is not a de Polignac number, because 68848661 - 214 = 68832277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68848669) 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, 11186 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (9863280).

Almost surely, 268848661 is an apocalyptic number.

It is an amenable number.

68848661 is a deficient number, since it is larger than the sum of its proper divisors (10057579).

68848661 is a wasteful number, since it uses less digits than its factorization.

68848661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27763.

The product of its digits is 442368, while the sum is 47.

The square root of 68848661 is about 8297.5093250927. The cubic root of 68848661 is about 409.8565054063.

The spelling of 68848661 in words is "sixty-eight million, eight hundred forty-eight thousand, six hundred sixty-one".

Divisors: 1 7 359 2513 27397 191779 9835523 68848661