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19935085 = 519223941
BaseRepresentation
bin100110000001…
…0111101101101
31101111210210111
41030002331231
520100410320
61551140021
7331305532
oct114027555
941453714
1019935085
1110286585
126814611
13418ca11
14290cd89
151b3ba5a
hex1302f6d

19935085 has 16 divisors (see below), whose sum is σ = 25320960. Its totient is φ = 15024960.

The previous prime is 19935079. The next prime is 19935103. The reversal of 19935085 is 58053991.

It is not a de Polignac number, because 19935085 - 25 = 19935053 is a prime.

It is a super-2 number, since 2×199350852 = 794815227914450, which contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 20715 + ... + 21655.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 219935085 is an apocalyptic number.

It is an amenable number.

19935085 is a deficient number, since it is larger than the sum of its proper divisors (5385875).

19935085 is a wasteful number, since it uses less digits than its factorization.

19935085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 19935085 is about 4464.8723386005. The cubic root of 19935085 is about 271.1477659849.

The spelling of 19935085 in words is "nineteen million, nine hundred thirty-five thousand, eighty-five".

Divisors: 1 5 19 95 223 941 1115 4237 4705 17879 21185 89395 209843 1049215 3987017 19935085