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68629693 = 1110758309
BaseRepresentation
bin1000001011100…
…11010010111101
311210010202020111
410011303102331
5120032122233
610450550021
71462225366
oct405632275
9153122214
1068629693
1135815560
121ab98311
13112abbb2
149186b6d
156059acd
hex41734bd

68629693 has 8 divisors (see below), whose sum is σ = 75569760. Its totient is φ = 61806480.

The previous prime is 68629681. The next prime is 68629703. The reversal of 68629693 is 39692686.

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 68629693 - 25 = 68629661 is a prime.

It is a super-2 number, since 2×686296932 = 9420069522548498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68629633) 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, 27978 + ... + 30331.

It is an arithmetic number, because the mean of its divisors is an integer number (9446220).

Almost surely, 268629693 is an apocalyptic number.

It is an amenable number.

68629693 is a deficient number, since it is larger than the sum of its proper divisors (6940067).

68629693 is a wasteful number, since it uses less digits than its factorization.

68629693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58427.

The product of its digits is 839808, while the sum is 49.

The square root of 68629693 is about 8284.3040142187. The cubic root of 68629693 is about 409.4215379993.

The spelling of 68629693 in words is "sixty-eight million, six hundred twenty-nine thousand, six hundred ninety-three".

Divisors: 1 11 107 1177 58309 641399 6239063 68629693