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19043085 = 352235693
BaseRepresentation
bin100100010100…
…1001100001101
31022211111012110
41020221030031
514333334320
61520054233
7320602125
oct110511415
938744173
1019043085
11a827396
126464379
133c399c9
142759c85
151a125e0
hex122930d

19043085 has 16 divisors (see below), whose sum is σ = 30610944. Its totient is φ = 10108992.

The previous prime is 19043081. The next prime is 19043159. The reversal of 19043085 is 58034091.

It is not a de Polignac number, because 19043085 - 22 = 19043081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19043081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499 + ... + 6191.

It is an arithmetic number, because the mean of its divisors is an integer number (1913184).

Almost surely, 219043085 is an apocalyptic number.

19043085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19043085 is a deficient number, since it is larger than the sum of its proper divisors (11567859).

19043085 is a wasteful number, since it uses less digits than its factorization.

19043085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 19043085 is about 4363.8383333941. The cubic root of 19043085 is about 267.0417109996.

The spelling of 19043085 in words is "nineteen million, forty-three thousand, eighty-five".

Divisors: 1 3 5 15 223 669 1115 3345 5693 17079 28465 85395 1269539 3808617 6347695 19043085