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68725735 = 5135931783
BaseRepresentation
bin1000001100010…
…10101111100111
311210022121222121
410012022233213
5120043210420
610453010411
71463105401
oct406125747
9153277877
1068725735
1135880731
121b023a07
1311313820
1491adb71
1560782aa
hex418abe7

68725735 has 16 divisors (see below), whose sum is σ = 89014464. Its totient is φ = 50637312.

The previous prime is 68725733. The next prime is 68725751. The reversal of 68725735 is 53752786.

It is a cyclic number.

It is not a de Polignac number, because 68725735 - 21 = 68725733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68725691 and 68725700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68725733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37654 + ... + 39436.

It is an arithmetic number, because the mean of its divisors is an integer number (5563404).

Almost surely, 268725735 is an apocalyptic number.

68725735 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68725735 is a deficient number, since it is larger than the sum of its proper divisors (20288729).

68725735 is a wasteful number, since it uses less digits than its factorization.

68725735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its digits is 352800, while the sum is 43.

The square root of 68725735 is about 8290.0986122000. The cubic root of 68725735 is about 409.6124336760.

The spelling of 68725735 in words is "sixty-eight million, seven hundred twenty-five thousand, seven hundred thirty-five".

Divisors: 1 5 13 65 593 1783 2965 7709 8915 23179 38545 115895 1057319 5286595 13745147 68725735