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19082712 = 2331141243
BaseRepresentation
bin100100011001…
…0110111011000
31022220111120010
41020302313120
514341121322
61521001520
7321125505
oct110626730
938814503
1019082712
11a854140
1264832a0
133c51a5c
14276a4ac
151a1e20c
hex1232dd8

19082712 has 96 divisors (see below), whose sum is σ = 54584640. Its totient is φ = 5510400.

The previous prime is 19082677. The next prime is 19082737. The reversal of 19082712 is 21728091.

It is a self number, because there is not a number n which added to its sum of digits gives 19082712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443763 + ... + 443805.

It is an arithmetic number, because the mean of its divisors is an integer number (568590).

Almost surely, 219082712 is an apocalyptic number.

19082712 is a gapful number since it is divisible by the number (12) 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 19082712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27292320).

19082712 is an abundant number, since it is smaller than the sum of its proper divisors (35501928).

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

19082712 is a wasteful number, since it uses less digits than its factorization.

19082712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 19082712 is about 4368.3763574124. The cubic root of 19082712 is about 267.2268128399.

The spelling of 19082712 in words is "nineteen million, eighty-two thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 41 43 44 66 82 86 88 123 129 132 164 172 246 258 264 328 344 451 473 492 516 902 946 984 1032 1353 1419 1681 1763 1804 1892 2706 2838 3362 3526 3608 3784 5043 5289 5412 5676 6724 7052 10086 10578 10824 11352 13448 14104 18491 19393 20172 21156 36982 38786 40344 42312 55473 58179 72283 73964 77572 110946 116358 144566 147928 155144 216849 221892 232716 289132 433698 443784 465432 578264 795113 867396 1590226 1734792 2385339 3180452 4770678 6360904 9541356 19082712