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19182942 = 2325771847
BaseRepresentation
bin100100100101…
…1010101011110
31100002121001100
41021023111132
514402323232
61523053530
7322023642
oct111132536
940077040
1019182942
11a912479
1265112a6
133c8856c
142794c22
151a3dc7c
hex124b55e

19182942 has 24 divisors (see below), whose sum is σ = 41657616. Its totient is φ = 6379776.

The previous prime is 19182931. The next prime is 19182967. The reversal of 19182942 is 24928191.

It is a junction number, because it is equal to n+sod(n) for n = 19182897 and 19182906.

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 11 ways as a sum of consecutive naturals, for example, 9463 + ... + 11309.

It is an arithmetic number, because the mean of its divisors is an integer number (1735734).

Almost surely, 219182942 is an apocalyptic number.

19182942 is an abundant number, since it is smaller than the sum of its proper divisors (22474674).

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

19182942 is a wasteful number, since it uses less digits than its factorization.

19182942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2429 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 19182942 is about 4379.8335584814. The cubic root of 19182942 is about 267.6938566254.

The spelling of 19182942 in words is "nineteen million, one hundred eighty-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 577 1154 1731 1847 3462 3694 5193 5541 10386 11082 16623 33246 1065719 2131438 3197157 6394314 9591471 19182942