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229438561 = 1197121481
BaseRepresentation
bin11011010110011…
…11010001100001
3120222201200112111
431223033101201
5432214013221
634433355321
75454124042
oct1553172141
9528650474
10229438561
1110856a650
1264a08b41
13386c3881
14226868c9
1515221be1
hexdacf461

229438561 has 8 divisors (see below), whose sum is σ = 250566048. Its totient is φ = 208356000.

The previous prime is 229438553. The next prime is 229438567. The reversal of 229438561 is 165834922.

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 229438561 - 23 = 229438553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229438567) 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, 60 + ... + 21421.

It is an arithmetic number, because the mean of its divisors is an integer number (31320756).

Almost surely, 2229438561 is an apocalyptic number.

It is an amenable number.

229438561 is a deficient number, since it is larger than the sum of its proper divisors (21127487).

229438561 is a wasteful number, since it uses less digits than its factorization.

229438561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22463.

The product of its digits is 103680, while the sum is 40.

The square root of 229438561 is about 15147.2294826480. The cubic root of 229438561 is about 612.1936258129.

The spelling of 229438561 in words is "two hundred twenty-nine million, four hundred thirty-eight thousand, five hundred sixty-one".

Divisors: 1 11 971 10681 21481 236291 20858051 229438561