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19014287143 = 177919141241
BaseRepresentation
bin10001101101010101…
…101111111100100111
31211002010201212102011
4101231111233330213
5302420124142033
612422434055051
71242122526325
oct215525577447
954063655364
1019014287143
1180780843a5
123827a1a487
131a404007a7
14cc5416d15
1576445cccd
hex46d56ff27

19014287143 has 8 divisors (see below), whose sum is σ = 20135459520. Its totient is φ = 17893413120.

The previous prime is 19014287119. The next prime is 19014287167. The reversal of 19014287143 is 34178241091.

It is an interprime number because it is at equal distance from previous prime (19014287119) and next prime (19014287167).

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 19014287143 - 25 = 19014287111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19014287096 and 19014287105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19014287843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64003 + ... + 205243.

It is an arithmetic number, because the mean of its divisors is an integer number (2516932440).

Almost surely, 219014287143 is an apocalyptic number.

19014287143 is a deficient number, since it is larger than the sum of its proper divisors (1121172377).

19014287143 is a wasteful number, since it uses less digits than its factorization.

19014287143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149177.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 19014287143 in words is "nineteen billion, fourteen million, two hundred eighty-seven thousand, one hundred forty-three".

Divisors: 1 17 7919 134623 141241 2401097 1118487479 19014287143