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19052004841 = 83216632
BaseRepresentation
bin10001101111100101…
…101000010111101001
31211011202201010100221
4101233211220113221
5303004303123331
612430302330041
71243061240422
oct215745502751
954152633327
1019052004841
1180973a6251
123838589921
131a4817855c
14cca434649
1576790d711
hex46f9685e9

19052004841 has 9 divisors (see below), whose sum is σ = 19295915709. Its totient is φ = 18811144236.

The previous prime is 19052004833. The next prime is 19052004847. The reversal of 19052004841 is 14840025091.

It is a happy number.

The square root of 19052004841 is 138029.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 19052004841 - 23 = 19052004833 is a prime.

It is a super-2 number, since 2×190520048412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19052004797 and 19052004806.

It is not an unprimeable number, because it can be changed into a prime (19052004847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11455576 + ... + 11457238.

Almost surely, 219052004841 is an apocalyptic number.

19052004841 is the 138029-th square number.

19052004841 is the 69015-th centered octagonal number.

It is an amenable number.

19052004841 is a deficient number, since it is larger than the sum of its proper divisors (243910868).

19052004841 is an frugal number, since it uses more digits than its factorization.

19052004841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 19052004841 in words is "nineteen billion, fifty-two million, four thousand, eight hundred forty-one".

Divisors: 1 83 1663 6889 138029 2765569 11456407 229542227 19052004841