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68782403 = 293536719
BaseRepresentation
bin1000001100110…
…00100101000011
311210102111201102
410012120211003
5120102014103
610454125015
71463432534
oct406304503
9153374642
1068782403
113590a268
121b05076b
1311333561
1491c668b
156089e88
hex4198943

68782403 has 8 divisors (see below), whose sum is σ = 71366400. Its totient is φ = 66212608.

The previous prime is 68782387. The next prime is 68782411. The reversal of 68782403 is 30428786.

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 68782403 - 24 = 68782387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68782433) 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, 6878 + ... + 13596.

It is an arithmetic number, because the mean of its divisors is an integer number (8920800).

Almost surely, 268782403 is an apocalyptic number.

68782403 is a deficient number, since it is larger than the sum of its proper divisors (2583997).

68782403 is a wasteful number, since it uses less digits than its factorization.

68782403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7101.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 68782403 is about 8293.5157201274. The cubic root of 68782403 is about 409.7249851120.

The spelling of 68782403 in words is "sixty-eight million, seven hundred eighty-two thousand, four hundred three".

Divisors: 1 29 353 6719 10237 194851 2371807 68782403