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68003455 = 5131046207
BaseRepresentation
bin1000000110110…
…10011001111111
311201221221012111
410003122121333
5114402102310
610425314451
71454006542
oct403323177
9151857174
1068003455
1135428003
121a935a27
131111cb40
149062859
155e8428a
hex40da67f

68003455 has 8 divisors (see below), whose sum is σ = 87881472. Its totient is φ = 50217888.

The previous prime is 68003431. The next prime is 68003497. The reversal of 68003455 is 55430086.

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 68003455 - 29 = 68002943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523039 + ... + 523168.

It is an arithmetic number, because the mean of its divisors is an integer number (10985184).

Almost surely, 268003455 is an apocalyptic number.

68003455 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68003455 is a deficient number, since it is larger than the sum of its proper divisors (19878017).

68003455 is a wasteful number, since it uses less digits than its factorization.

68003455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046225.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 68003455 is about 8246.4207387205. The cubic root of 68003455 is about 408.1724228778.

The spelling of 68003455 in words is "sixty-eight million, three thousand, four hundred fifty-five".

Divisors: 1 5 13 65 1046207 5231035 13600691 68003455