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227145344 = 2712231451
BaseRepresentation
bin11011000100111…
…11011010000000
3120211102011211112
431202133122000
5431122122334
634312302452
75425463216
oct1542373200
9524364745
10227145344
11107243728
12640a1a28
133809cb3a
142224acb6
1514e1c4ce
hexd89f680

227145344 has 32 divisors (see below), whose sum is σ = 453198240. Its totient is φ = 113401600.

The previous prime is 227145341. The next prime is 227145349. The reversal of 227145344 is 443541722.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

227145344 is a Rhonda number in base 10.

Its product of digits (26880) is a multiple of the sum of its prime factors (2688).

It is a self number, because there is not a number n which added to its sum of digits gives 227145344.

It is not an unprimeable number, because it can be changed into a prime (227145341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155819 + ... + 157269.

It is an arithmetic number, because the mean of its divisors is an integer number (14162445).

Almost surely, 2227145344 is an apocalyptic number.

It is an amenable number.

227145344 is a deficient number, since it is larger than the sum of its proper divisors (226052896).

227145344 is a wasteful number, since it uses less digits than its factorization.

227145344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2676 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 227145344 is about 15071.3418115309. The cubic root of 227145344 is about 610.1471865555.

The spelling of 227145344 in words is "two hundred twenty-seven million, one hundred forty-five thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 32 64 128 1223 1451 2446 2902 4892 5804 9784 11608 19568 23216 39136 46432 78272 92864 156544 185728 1774573 3549146 7098292 14196584 28393168 56786336 113572672 227145344