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227678668 = 22724473323
BaseRepresentation
bin11011001001000…
…01100111001100
3120212102021102021
431210201213030
5431241204133
634331535524
75433144130
oct1544414714
9525367367
10227678668
11107578398
12642ba5a4
1338228809
14223493c0
1514ec552d
hexd9219cc

227678668 has 24 divisors (see below), whose sum is σ = 455680512. Its totient is φ = 97507344.

The previous prime is 227678639. The next prime is 227678677. The reversal of 227678668 is 866876722.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66855 + ... + 70177.

It is an arithmetic number, because the mean of its divisors is an integer number (18986688).

Almost surely, 2227678668 is an apocalyptic number.

227678668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

227678668 is an abundant number, since it is smaller than the sum of its proper divisors (228001844).

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

227678668 is a wasteful number, since it uses less digits than its factorization.

227678668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781 (or 5779 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 227678668 is about 15089.0247531111. The cubic root of 227678668 is about 610.6243432897.

The spelling of 227678668 in words is "two hundred twenty-seven million, six hundred seventy-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 2447 3323 4894 6646 9788 13292 17129 23261 34258 46522 68516 93044 8131381 16262762 32525524 56919667 113839334 227678668