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228130563 = 383916187
BaseRepresentation
bin11011001100011…
…11111100000011
3120220021020022010
431212033330003
5431400134223
634345344003
75440035453
oct1546177403
9526236263
10228130563
11107856961
1264498003
13383563cb
1422425d63
1515064393
hexd98ff03

228130563 has 8 divisors (see below), whose sum is σ = 307839168. Its totient is φ = 150254504.

The previous prime is 228130547. The next prime is 228130579. The reversal of 228130563 is 365031822.

It is an interprime number because it is at equal distance from previous prime (228130547) and next prime (228130579).

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 228130563 - 24 = 228130547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228130563.

It is not an unprimeable number, because it can be changed into a prime (228137563) 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, 457845 + ... + 458342.

It is an arithmetic number, because the mean of its divisors is an integer number (38479896).

Almost surely, 2228130563 is an apocalyptic number.

228130563 is a deficient number, since it is larger than the sum of its proper divisors (79708605).

228130563 is an equidigital number, since it uses as much as digits as its factorization.

228130563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916273.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 228130563 is about 15103.9916247328. The cubic root of 228130563 is about 611.0280639238.

The spelling of 228130563 in words is "two hundred twenty-eight million, one hundred thirty thousand, five hundred sixty-three".

Divisors: 1 3 83 249 916187 2748561 76043521 228130563