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68870585 = 5753137271
BaseRepresentation
bin1000001101011…
…10000110111001
311210120222200102
410012232012321
5120112324320
610500045145
71464250610
oct406560671
9153528612
1068870585
113596a543
121b0937b5
1311364734
14920a877
1560a6175
hex41ae1b9

68870585 has 32 divisors (see below), whose sum is σ = 97293312. Its totient is φ = 45826560.

The previous prime is 68870551. The next prime is 68870591. The reversal of 68870585 is 58507886.

It is not a de Polignac number, because 68870585 - 26 = 68870521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254000 + ... + 254270.

It is an arithmetic number, because the mean of its divisors is an integer number (3040416).

Almost surely, 268870585 is an apocalyptic number.

It is an amenable number.

68870585 is a deficient number, since it is larger than the sum of its proper divisors (28422727).

68870585 is a wasteful number, since it uses less digits than its factorization.

68870585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 68870585 is about 8298.8303392707. The cubic root of 68870585 is about 409.9000053586.

The spelling of 68870585 in words is "sixty-eight million, eight hundred seventy thousand, five hundred eighty-five".

Divisors: 1 5 7 35 53 137 265 271 371 685 959 1355 1855 1897 4795 7261 9485 14363 36305 37127 50827 71815 100541 185635 254135 259889 502705 1299445 1967731 9838655 13774117 68870585