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19204832143 = 710326636383
BaseRepresentation
bin10001111000101100…
…100111101110001111
31211120102021120000101
4101320230213232033
5303312414112033
612453402111531
71246625244160
oct217054475617
954512246011
1019204832143
118165699702
12387b7ab5a7
131a70a27303
14d02857767
1577604a97d
hex478b27b8f

19204832143 has 8 divisors (see below), whose sum is σ = 22161471488. Its totient is φ = 16301465784.

The previous prime is 19204832117. The next prime is 19204832147. The reversal of 19204832143 is 34123840291.

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

It is a cyclic number.

It is not a de Polignac number, because 19204832143 - 217 = 19204701071 is a prime.

It is the 138582-nd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19204832147) by changing a digit.

It is a nontrivial repunit in base 138581.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13317471 + ... + 13318912.

It is an arithmetic number, because the mean of its divisors is an integer number (2770183936).

Almost surely, 219204832143 is an apocalyptic number.

19204832143 is a deficient number, since it is larger than the sum of its proper divisors (2956639345).

19204832143 is a wasteful number, since it uses less digits than its factorization.

19204832143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26636493.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 19204832143 in words is "nineteen billion, two hundred four million, eight hundred thirty-two thousand, one hundred forty-three".

Divisors: 1 7 103 721 26636383 186454681 2743547449 19204832143