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228990112 = 2513550457
BaseRepresentation
bin11011010011000…
…01110010100000
3120221212220101021
431221201302200
5432110140422
634420015224
75450245441
oct1551416240
9527786337
10228990112
1110829372a
1264831514
1338597710
14225ab2c8
1515183dc7
hexda61ca0

228990112 has 24 divisors (see below), whose sum is σ = 485503956. Its totient is φ = 105687552.

The previous prime is 228990107. The next prime is 228990133. The reversal of 228990112 is 211099822.

It can be written as a sum of positive squares in 2 ways, for example, as 213276816 + 15713296 = 14604^2 + 3964^2 .

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, 274813 + ... + 275644.

Almost surely, 2228990112 is an apocalyptic number.

It is an amenable number.

228990112 is an abundant number, since it is smaller than the sum of its proper divisors (256513844).

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

228990112 is a wasteful number, since it uses less digits than its factorization.

228990112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550480 (or 550472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 228990112 is about 15132.4192381787. The cubic root of 228990112 is about 611.7945114438.

The spelling of 228990112 in words is "two hundred twenty-eight million, nine hundred ninety thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 550457 1100914 2201828 4403656 7155941 8807312 14311882 17614624 28623764 57247528 114495056 228990112