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19024394245 = 54444985601
BaseRepresentation
bin10001101101111100…
…010011100000000101
31211002211202100202021
4101231330103200011
5302430221103440
612423434443141
71242304453153
oct215574234005
954084670667
1019024394245
118082857a7a
12382b2934b1
131a4252c01c
14cc68c83d3
157652a784a
hex46df13805

19024394245 has 8 divisors (see below), whose sum is σ = 22830053400. Its totient is φ = 15218995200.

The previous prime is 19024394231. The next prime is 19024394269. The reversal of 19024394245 is 54249342091.

It can be written as a sum of positive squares in 4 ways, for example, as 4035044484 + 14989349761 = 63522^2 + 122431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19024394245 - 213 = 19024386053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179445 + ... + 265045.

It is an arithmetic number, because the mean of its divisors is an integer number (2853756675).

Almost surely, 219024394245 is an apocalyptic number.

It is an amenable number.

19024394245 is a deficient number, since it is larger than the sum of its proper divisors (3805659155).

19024394245 is an equidigital number, since it uses as much as digits as its factorization.

19024394245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130055.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 19024394245 in words is "nineteen billion, twenty-four million, three hundred ninety-four thousand, two hundred forty-five".

Divisors: 1 5 44449 85601 222245 428005 3804878849 19024394245