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19002919382 = 29501459691
BaseRepresentation
bin10001101100101010…
…011000100111010110
31211001100100022202222
4101230222120213112
5302404221410012
612421350302342
71241624102216
oct215452304726
954040308688
1019002919382
11807171a657
1238240579b2
131a3ac504c5
14cc3ad8246
15763464972
hex46ca989d6

19002919382 has 4 divisors (see below), whose sum is σ = 28504379076. Its totient is φ = 9501459690.

The previous prime is 19002919381. The next prime is 19002919427. The reversal of 19002919382 is 28391920091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28391920091 = 116324412657.

It is a super-2 number, since 2×190029193822 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19002919381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4750729844 + ... + 4750729847.

It is an arithmetic number, because the mean of its divisors is an integer number (7126094769).

Almost surely, 219002919382 is an apocalyptic number.

19002919382 is a deficient number, since it is larger than the sum of its proper divisors (9501459694).

19002919382 is an equidigital number, since it uses as much as digits as its factorization.

19002919382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9501459693.

The product of its (nonzero) digits is 69984, while the sum is 44.

The spelling of 19002919382 in words is "nineteen billion, two million, nine hundred nineteen thousand, three hundred eighty-two".

Divisors: 1 2 9501459691 19002919382