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68552419 = 135273263
BaseRepresentation
bin1000001011000…
…00011011100011
311202222211020111
410011200123203
5120022134134
610445152151
71461454165
oct405403343
9152884214
1068552419
11357724a1
121ab5b657
1311282980
149166935
156041c64
hex41606e3

68552419 has 4 divisors (see below), whose sum is σ = 73825696. Its totient is φ = 63279144.

The previous prime is 68552413. The next prime is 68552447. The reversal of 68552419 is 91425586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68552419 - 27 = 68552291 is a prime.

It is a super-2 number, since 2×685524192 = 9398868301503122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68552413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2636619 + ... + 2636644.

It is an arithmetic number, because the mean of its divisors is an integer number (18456424).

Almost surely, 268552419 is an apocalyptic number.

68552419 is a deficient number, since it is larger than the sum of its proper divisors (5273277).

68552419 is a wasteful number, since it uses less digits than its factorization.

68552419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273276.

The product of its digits is 86400, while the sum is 40.

The square root of 68552419 is about 8279.6388206250. The cubic root of 68552419 is about 409.2678167738.

The spelling of 68552419 in words is "sixty-eight million, five hundred fifty-two thousand, four hundred nineteen".

Divisors: 1 13 5273263 68552419