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16818350153 = 111528940923
BaseRepresentation
bin11111010100111001…
…11010100001001001
31121102002200201011112
433222130322201021
5233420444201103
611420511340105
71133526421553
oct175234724111
947362621145
1016818350153
11715057a440
123314521635
1317804925a7
14b579164d3
15686794cd8
hex3ea73a849

16818350153 has 4 divisors (see below), whose sum is σ = 18347291088. Its totient is φ = 15289409220.

The previous prime is 16818350149. The next prime is 16818350167. The reversal of 16818350153 is 35105381861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16818350153 - 22 = 16818350149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16818350153.

It is not an unprimeable number, because it can be changed into a prime (16818350173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764470451 + ... + 764470472.

It is an arithmetic number, because the mean of its divisors is an integer number (4586822772).

Almost surely, 216818350153 is an apocalyptic number.

It is an amenable number.

16818350153 is a deficient number, since it is larger than the sum of its proper divisors (1528940935).

16818350153 is a wasteful number, since it uses less digits than its factorization.

16818350153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528940934.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 16818350153 in words is "sixteen billion, eight hundred eighteen million, three hundred fifty thousand, one hundred fifty-three".

Divisors: 1 11 1528940923 16818350153