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228713488 = 24192925943
BaseRepresentation
bin11011010000111…
…10010000010000
3120221100211220221
431220132100100
5432022312423
634410042424
75445014113
oct1550362020
9527324827
10228713488
11108114913
1264719414
13384cb833
142253857a
151512be5d
hexda1e410

228713488 has 40 divisors (see below), whose sum is σ = 482558400. Its totient is φ = 104598144.

The previous prime is 228713477. The next prime is 228713489. The reversal of 228713488 is 884317822.

It is a super-3 number, since 3×2287134883 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (228713489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4156 + ... + 21787.

It is an arithmetic number, because the mean of its divisors is an integer number (12063960).

Almost surely, 2228713488 is an apocalyptic number.

It is an amenable number.

228713488 is an abundant number, since it is smaller than the sum of its proper divisors (253844912).

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

228713488 is a wasteful number, since it uses less digits than its factorization.

228713488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25999 (or 25993 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 228713488 is about 15123.2763645977. The cubic root of 228713488 is about 611.5480594080.

The spelling of 228713488 in words is "two hundred twenty-eight million, seven hundred thirteen thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 19 29 38 58 76 116 152 232 304 464 551 1102 2204 4408 8816 25943 51886 103772 207544 415088 492917 752347 985834 1504694 1971668 3009388 3943336 6018776 7886672 12037552 14294593 28589186 57178372 114356744 228713488