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228980512 = 2531722573
BaseRepresentation
bin11011010010111…
…11011100100000
3120221212102012201
431221133130200
5432104334022
634415502544
75450205445
oct1551373440
9527772181
10228980512
111082874a2
1264827a54
1338593237
14225a79cc
1515181127
hexda5f720

228980512 has 24 divisors (see below), whose sum is σ = 452247516. Its totient is φ = 114124032.

The previous prime is 228980501. The next prime is 228980527. The reversal of 228980512 is 215089822.

It can be written as a sum of positive squares in 2 ways, for example, as 166823056 + 62157456 = 12916^2 + 7884^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143 + ... + 21430.

Almost surely, 2228980512 is an apocalyptic number.

It is an amenable number.

228980512 is a deficient number, since it is larger than the sum of its proper divisors (223267004).

228980512 is a wasteful number, since it uses less digits than its factorization.

228980512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22900 (or 22892 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 228980512 is about 15132.1020350776. The cubic root of 228980512 is about 611.7859618615.

The spelling of 228980512 in words is "two hundred twenty-eight million, nine hundred eighty thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 317 634 1268 2536 5072 10144 22573 45146 90292 180584 361168 722336 7155641 14311282 28622564 57245128 114490256 228980512