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19418237027 = 713121175831
BaseRepresentation
bin10010000101011010…
…101100100001100011
31212010021211122110222
4102011122230201203
5304232032041102
612530504113255
71255126201640
oct220532544143
955107748428
1019418237027
1182650a7982
12391b16582b
131aa5cc5ba7
14d22d28dc7
15789b51aa2
hex4856ac863

19418237027 has 8 divisors (see below), whose sum is σ = 22361678592. Its totient is φ = 16517147400.

The previous prime is 19418237023. The next prime is 19418237039. The reversal of 19418237027 is 72073281491.

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 19418237027 - 22 = 19418237023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19418237023) 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, 10586999 + ... + 10588832.

It is an arithmetic number, because the mean of its divisors is an integer number (2795209824).

Almost surely, 219418237027 is an apocalyptic number.

19418237027 is a deficient number, since it is larger than the sum of its proper divisors (2943441565).

19418237027 is a wasteful number, since it uses less digits than its factorization.

19418237027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21175969.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 19418237027 in words is "nineteen billion, four hundred eighteen million, two hundred thirty-seven thousand, twenty-seven".

Divisors: 1 7 131 917 21175831 148230817 2774033861 19418237027