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228610508 = 22719429719
BaseRepresentation
bin11011010000001…
…01000111001100
3120221011121122212
431220011013030
5432011014013
634403525552
75444104640
oct1550050714
9527147585
10228610508
11108054505
12646898b8
13384939b9
142250cc20
151510b6a8
hexda051cc

228610508 has 24 divisors (see below), whose sum is σ = 481286400. Its totient is φ = 92819088.

The previous prime is 228610507. The next prime is 228610511. The reversal of 228610508 is 805016822.

It is not an unprimeable number, because it can be changed into a prime (228610507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214328 + ... + 215391.

It is an arithmetic number, because the mean of its divisors is an integer number (20053600).

Almost surely, 2228610508 is an apocalyptic number.

228610508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228610508 is an abundant number, since it is smaller than the sum of its proper divisors (252675892).

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

228610508 is a wasteful number, since it uses less digits than its factorization.

228610508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429749 (or 429747 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 228610508 is about 15119.8712957485. The cubic root of 228610508 is about 611.4562608962.

The spelling of 228610508 in words is "two hundred twenty-eight million, six hundred ten thousand, five hundred eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 429719 859438 1718876 3008033 6016066 8164661 12032132 16329322 32658644 57152627 114305254 228610508