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19039524449 = 118943974423
BaseRepresentation
bin10001101110110110…
…000001011001100001
31211010220020001111012
4101232312001121201
5302443104240244
612425135030305
71242550200431
oct215666013141
954126201435
1019039524449
118090351580
12383436b395
131a456c89ca
14cc89062c1
1576679589e
hex46ed81661

19039524449 has 16 divisors (see below), whose sum is σ = 21013292160. Its totient is φ = 17106418560.

The previous prime is 19039524397. The next prime is 19039524457. The reversal of 19039524449 is 94442593091.

It is not a de Polignac number, because 19039524449 - 216 = 19039458913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19039524397 and 19039524406.

It is not an unprimeable number, because it can be changed into a prime (19039524349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4302452 + ... + 4306874.

It is an arithmetic number, because the mean of its divisors is an integer number (1313330760).

Almost surely, 219039524449 is an apocalyptic number.

It is an amenable number.

19039524449 is a deficient number, since it is larger than the sum of its proper divisors (1973767711).

19039524449 is a wasteful number, since it uses less digits than its factorization.

19039524449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8920.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 19039524449 in words is "nineteen billion, thirty-nine million, five hundred twenty-four thousand, four hundred forty-nine".

Divisors: 1 11 89 979 4397 4423 48367 48653 391333 393647 4304663 4330117 19447931 213927241 1730865859 19039524449