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19082016 = 2532591123
BaseRepresentation
bin100100011001…
…0101100100000
31022220110121100
41020302230200
514341111031
61520554400
7321123462
oct110625440
938813540
1019082016
11a853668
126482a00
133c51645
14276a132
151a1dde6
hex1232b20

19082016 has 72 divisors (see below), whose sum is σ = 55233360. Its totient is φ = 6247296.

The previous prime is 19082003. The next prime is 19082017. The reversal of 19082016 is 61028091.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (19082017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16431 + ... + 17553.

It is an arithmetic number, because the mean of its divisors is an integer number (767130).

Almost surely, 219082016 is an apocalyptic number.

19082016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19082016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27616680).

19082016 is an abundant number, since it is smaller than the sum of its proper divisors (36151344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19082016 is a wasteful number, since it uses less digits than its factorization.

19082016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 19082016 is about 4368.2966932204. The cubic root of 19082016 is about 267.2235639634.

The spelling of 19082016 in words is "nineteen million, eighty-two thousand, sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 59 72 96 118 144 177 236 288 354 472 531 708 944 1062 1123 1416 1888 2124 2246 2832 3369 4248 4492 5664 6738 8496 8984 10107 13476 16992 17968 20214 26952 35936 40428 53904 66257 80856 107808 132514 161712 198771 265028 323424 397542 530056 596313 795084 1060112 1192626 1590168 2120224 2385252 3180336 4770504 6360672 9541008 19082016