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68626605 = 354575107
BaseRepresentation
bin1000001011100…
…10100010101101
311210010121000010
410011302202231
5120032022410
610450523433
71462213365
oct405624255
9153117003
1068626605
1135813203
121ab96579
13112aa678
1491859a5
156058c20
hex41728ad

68626605 has 8 divisors (see below), whose sum is σ = 109802592. Its totient is φ = 36600848.

The previous prime is 68626583. The next prime is 68626639. The reversal of 68626605 is 50662686.

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 68626605 - 27 = 68626477 is a prime.

It is a super-2 number, since 2×686266052 = 9419221827652050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2287539 + ... + 2287568.

It is an arithmetic number, because the mean of its divisors is an integer number (13725324).

Almost surely, 268626605 is an apocalyptic number.

It is an amenable number.

68626605 is a deficient number, since it is larger than the sum of its proper divisors (41175987).

68626605 is a wasteful number, since it uses less digits than its factorization.

68626605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575115.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68626605 is about 8284.1176355723. The cubic root of 68626605 is about 409.4153972527.

The spelling of 68626605 in words is "sixty-eight million, six hundred twenty-six thousand, six hundred five".

Divisors: 1 3 5 15 4575107 13725321 22875535 68626605