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68373043 = 232972741
BaseRepresentation
bin1000001001101…
…00101000110011
311202122201011221
410010310220303
5120000414133
610441245511
71460106214
oct404645063
9152581157
1068373043
113565a752
121aa93897
131121c12b
14911b40b
156008a2d
hex4134a33

68373043 has 4 divisors (see below), whose sum is σ = 71345808. Its totient is φ = 65400280.

The previous prime is 68373037. The next prime is 68373047. The reversal of 68373043 is 34037386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34037386 = 217018693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68373043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68373047) 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, 1486348 + ... + 1486393.

It is an arithmetic number, because the mean of its divisors is an integer number (17836452).

Almost surely, 268373043 is an apocalyptic number.

68373043 is a deficient number, since it is larger than the sum of its proper divisors (2972765).

68373043 is a wasteful number, since it uses less digits than its factorization.

68373043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972764.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 68373043 is about 8268.7993687113. The cubic root of 68373043 is about 408.9105381175.

The spelling of 68373043 in words is "sixty-eight million, three hundred seventy-three thousand, forty-three".

Divisors: 1 23 2972741 68373043