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228126208 = 291133943
BaseRepresentation
bin11011001100011…
…10111000000000
3120220021000022211
431212032320000
5431400014313
634345311504
75440016662
oct1546167000
9526230284
10228126208
11107853662
1264495594
133835442b
1422424532
1515062e3d
hexd98ee00

228126208 has 40 divisors (see below), whose sum is σ = 459957168. Its totient is φ = 113025024.

The previous prime is 228126187. The next prime is 228126221. The reversal of 228126208 is 802621822.

It is a self number, because there is not a number n which added to its sum of digits gives 228126208.

It is a congruent number.

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, 55885 + ... + 59827.

Almost surely, 2228126208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228126208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229978584).

228126208 is an abundant number, since it is smaller than the sum of its proper divisors (231830960).

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

228126208 is an equidigital number, since it uses as much as digits as its factorization.

228126208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 228126208 is about 15103.8474568568. The cubic root of 228126208 is about 611.0241757350.

The spelling of 228126208 in words is "two hundred twenty-eight million, one hundred twenty-six thousand, two hundred eight".

Divisors: 1 2 4 8 16 32 64 113 128 226 256 452 512 904 1808 3616 3943 7232 7886 14464 15772 28928 31544 57856 63088 126176 252352 445559 504704 891118 1009408 1782236 2018816 3564472 7128944 14257888 28515776 57031552 114063104 228126208