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228023022 = 23307123791
BaseRepresentation
bin11011001011101…
…01101011101110
3120220001202210010
431211311223232
5431333214042
634343154050
75436110103
oct1545655356
9526052703
10228023022
11107793087
1264445926
1338319486
14223d8aaa
151504259c
hexd975aee

228023022 has 16 divisors (see below), whose sum is σ = 457535232. Its totient is φ = 75759480.

The previous prime is 228023021. The next prime is 228023051. The reversal of 228023022 is 220320822.

It is a self number, because there is not a number n which added to its sum of digits gives 228023022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228023021) 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, 60054 + ... + 63737.

It is an arithmetic number, because the mean of its divisors is an integer number (28595952).

Almost surely, 2228023022 is an apocalyptic number.

228023022 is an abundant number, since it is smaller than the sum of its proper divisors (229512210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228023022 is a wasteful number, since it uses less digits than its factorization.

228023022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124103.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 228023022 is about 15100.4311858966. The cubic root of 228023022 is about 610.9320357310.

Adding to 228023022 its reverse (220320822), we get a palindrome (448343844).

The spelling of 228023022 in words is "two hundred twenty-eight million, twenty-three thousand, twenty-two".

Divisors: 1 2 3 6 307 614 921 1842 123791 247582 371373 742746 38003837 76007674 114011511 228023022