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227225420 = 22511361271
BaseRepresentation
bin11011000101100…
…10111101001100
3120211120020200022
431202302331030
5431132203140
634314121312
75426245532
oct1542627514
9524506608
10227225420
11107298904
1264120238
13380ca416
142226c152
1514e360b5
hexd8b2f4c

227225420 has 12 divisors (see below), whose sum is σ = 477173424. Its totient is φ = 90890160.

The previous prime is 227225419. The next prime is 227225429. The reversal of 227225420 is 24522722.

It is a self number, because there is not a number n which added to its sum of digits gives 227225420.

It is not an unprimeable number, because it can be changed into a prime (227225429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680616 + ... + 5680655.

It is an arithmetic number, because the mean of its divisors is an integer number (39764452).

Almost surely, 2227225420 is an apocalyptic number.

227225420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227225420 is an abundant number, since it is smaller than the sum of its proper divisors (249948004).

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

227225420 is a wasteful number, since it uses less digits than its factorization.

227225420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11361280 (or 11361278 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 227225420 is about 15073.9981424969. The cubic root of 227225420 is about 610.2188769323.

The spelling of 227225420 in words is "two hundred twenty-seven million, two hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 11361271 22722542 45445084 56806355 113612710 227225420