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226730385 = 3257719779
BaseRepresentation
bin11011000001110…
…10000110010001
3120210122002121200
431200322012101
5431020333020
634255341413
75422114350
oct1540720621
9523562550
10226730385
11106a8a992
1263b21869
1337c85cbb
142217d997
1514d89590
hexd83a191

226730385 has 24 divisors (see below), whose sum is σ = 449142720. Its totient is φ = 103648032.

The previous prime is 226730359. The next prime is 226730393. The reversal of 226730385 is 583037622.

It is not a de Polignac number, because 226730385 - 212 = 226726289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359575 + ... + 360204.

It is an arithmetic number, because the mean of its divisors is an integer number (18714280).

Almost surely, 2226730385 is an apocalyptic number.

It is an amenable number.

226730385 is a deficient number, since it is larger than the sum of its proper divisors (222412335).

226730385 is a wasteful number, since it uses less digits than its factorization.

226730385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719797 (or 719794 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 226730385 is about 15057.5690269047. The cubic root of 226730385 is about 609.7754122608.

The spelling of 226730385 in words is "two hundred twenty-six million, seven hundred thirty thousand, three hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 719779 2159337 3598895 5038453 6478011 10796685 15115359 25192265 32390055 45346077 75576795 226730385