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226520 = 2357809
BaseRepresentation
bin110111010011011000
3102111201122
4313103120
524222040
64504412
71632260
oct672330
9374648
10226520
11145208
12ab108
137c148
145c7a0
15471b5
hex374d8

226520 has 32 divisors (see below), whose sum is σ = 583200. Its totient is φ = 77568.

The previous prime is 226511. The next prime is 226531. The reversal of 226520 is 25622.

It is a super-2 number, since 2×2265202 = 102622620800, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 226520.

It is an unprimeable number.

226520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 684.

It is an arithmetic number, because the mean of its divisors is an integer number (18225).

2226520 is an apocalyptic number.

226520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226520 is an abundant number, since it is smaller than the sum of its proper divisors (356680).

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

226520 is a wasteful number, since it uses less digits than its factorization.

226520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 226520 is about 475.9411728355. The cubic root of 226520 is about 60.9586748678.

The spelling of 226520 in words is "two hundred twenty-six thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 809 1618 3236 4045 5663 6472 8090 11326 16180 22652 28315 32360 45304 56630 113260 226520