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6423147563 = 72931641121
BaseRepresentation
bin1011111101101100…
…10111010000101011
3121120122021201000012
411332312113100223
5101123311210223
62541210202135
7315112565510
oct57666272053
917518251005
106423147563
1127a6776918
1212b312334b
137b4953341
1444d0bb307
15278d6ec78
hex17ed9742b

6423147563 has 8 divisors (see below), whose sum is σ = 7593869280. Its totient is φ = 5315708160.

The previous prime is 6423147541. The next prime is 6423147569. The reversal of 6423147563 is 3657413246.

6423147563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6423147563 - 28 = 6423147307 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 6423147563.

It is not an unprimeable number, because it can be changed into a prime (6423147569) 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, 15820358 + ... + 15820763.

It is an arithmetic number, because the mean of its divisors is an integer number (949233660).

Almost surely, 26423147563 is an apocalyptic number.

6423147563 is a deficient number, since it is larger than the sum of its proper divisors (1170721717).

6423147563 is a wasteful number, since it uses less digits than its factorization.

6423147563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31641157.

The product of its digits is 362880, while the sum is 41.

The square root of 6423147563 is about 80144.5416918707. The cubic root of 6423147563 is about 1858.8712042350.

The spelling of 6423147563 in words is "six billion, four hundred twenty-three million, one hundred forty-seven thousand, five hundred sixty-three".

Divisors: 1 7 29 203 31641121 221487847 917592509 6423147563