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68760453 = 322920151
BaseRepresentation
bin1000001100100…
…11001110000101
311210101101121110
410012103032011
5120100313303
610453435233
71463311536
oct406231605
9153341543
1068760453
11358a4823
121b03bb19
1311326578
1491bc68d
156083703
hex4193385

68760453 has 4 divisors (see below), whose sum is σ = 91680608. Its totient is φ = 45840300.

The previous prime is 68760401. The next prime is 68760463. The reversal of 68760453 is 35406786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68760453 - 213 = 68752261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68760463) 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, 11460073 + ... + 11460078.

It is an arithmetic number, because the mean of its divisors is an integer number (22920152).

Almost surely, 268760453 is an apocalyptic number.

It is an amenable number.

68760453 is a deficient number, since it is larger than the sum of its proper divisors (22920155).

68760453 is a wasteful number, since it uses less digits than its factorization.

68760453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22920154.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 68760453 is about 8292.1922915475. The cubic root of 68760453 is about 409.6813963457.

The spelling of 68760453 in words is "sixty-eight million, seven hundred sixty thousand, four hundred fifty-three".

Divisors: 1 3 22920151 68760453