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19082040 = 2335159017
BaseRepresentation
bin100100011001…
…0101100111000
31022220110122020
41020302230320
514341111130
61520554440
7321123525
oct110625470
938813566
1019082040
11a85368a
126482a20
133c51663
14276a14c
151a1de10
hex1232b38

19082040 has 32 divisors (see below), whose sum is σ = 57246480. Its totient is φ = 5088512.

The previous prime is 19082017. The next prime is 19082057. The reversal of 19082040 is 4028091.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 19082040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79389 + ... + 79628.

Almost surely, 219082040 is an apocalyptic number.

19082040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19082040 is an abundant number, since it is smaller than the sum of its proper divisors (38164440).

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

19082040 is a wasteful number, since it uses less digits than its factorization.

19082040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159031 (or 159027 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 19082040 is about 4368.2994402857. The cubic root of 19082040 is about 267.2236759950.

The spelling of 19082040 in words is "nineteen million, eighty-two thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 159017 318034 477051 636068 795085 954102 1272136 1590170 1908204 2385255 3180340 3816408 4770510 6360680 9541020 19082040