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68860953 = 3274612371
BaseRepresentation
bin1000001101010…
…11110000011001
311210120111110200
410012223300121
5120112022303
610455532413
71464210540
oct406536031
9153514420
1068860953
1135963287
121b08a109
1311360235
149207157
1560a33a3
hex41abc19

68860953 has 24 divisors (see below), whose sum is σ = 113969856. Its totient is φ = 39247200.

The previous prime is 68860943. The next prime is 68861003. The reversal of 68860953 is 35906886.

It is not a de Polignac number, because 68860953 - 24 = 68860937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68860899 and 68860908.

It is not an unprimeable number, because it can be changed into a prime (68860943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27858 + ... + 30228.

It is an arithmetic number, because the mean of its divisors is an integer number (4748744).

Almost surely, 268860953 is an apocalyptic number.

68860953 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68860953 is a deficient number, since it is larger than the sum of its proper divisors (45108903).

68860953 is a wasteful number, since it uses less digits than its factorization.

68860953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 68860953 is about 8298.2499962341. The cubic root of 68860953 is about 409.8808954056.

The spelling of 68860953 in words is "sixty-eight million, eight hundred sixty thousand, nine hundred fifty-three".

Divisors: 1 3 7 9 21 63 461 1383 2371 3227 4149 7113 9681 16597 21339 29043 49791 149373 1093031 3279093 7651217 9837279 22953651 68860953