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227090000 = 245422709
BaseRepresentation
bin11011000100100…
…01111001010000
3120211022100220202
431202101321100
5431113340000
634311154332
75425142654
oct1542217120
9524270822
10227090000
11107206095
12640759a8
13380808a7
1422234a64
1514e0add5
hexd891e50

227090000 has 50 divisors (see below), whose sum is σ = 549831810. Its totient is φ = 90832000.

The previous prime is 227089963. The next prime is 227090027. The reversal of 227090000 is 90722.

It can be written as a sum of positive squares in 5 ways, for example, as 168169024 + 58920976 = 12968^2 + 7676^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1355 + ... + 21354.

Almost surely, 2227090000 is an apocalyptic number.

227090000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227090000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274915905).

227090000 is an abundant number, since it is smaller than the sum of its proper divisors (322741810).

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

227090000 is an equidigital number, since it uses as much as digits as its factorization.

227090000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22737 (or 22716 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 227090000 is about 15069.5056322362. The cubic root of 227090000 is about 610.0976283766.

The spelling of 227090000 in words is "two hundred twenty-seven million, ninety thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 22709 45418 90836 113545 181672 227090 363344 454180 567725 908360 1135450 1816720 2270900 2838625 4541800 5677250 9083600 11354500 14193125 22709000 28386250 45418000 56772500 113545000 227090000