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229026720 = 253513172127
BaseRepresentation
bin11011010011010…
…10101110100000
3120221221202121010
431221222232200
5432112323340
634420500520
75450460246
oct1551525640
9527852533
10229026720
1110830918a
126484a740
13385ab290
14225ba796
151518eb80
hexda6aba0

229026720 has 288 divisors, whose sum is σ = 831817728. Its totient is φ = 52641792.

The previous prime is 229026719. The next prime is 229026761. The reversal of 229026720 is 27620922.

229026720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1803297 + ... + 1803423.

It is an arithmetic number, because the mean of its divisors is an integer number (2888256).

Almost surely, 2229026720 is an apocalyptic number.

229026720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229026720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415908864).

229026720 is an abundant number, since it is smaller than the sum of its proper divisors (602791008).

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

229026720 is a wasteful number, since it uses less digits than its factorization.

229026720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 229026720 is about 15133.6287783202. The cubic root of 229026720 is about 611.8271116579.

The spelling of 229026720 in words is "two hundred twenty-nine million, twenty-six thousand, seven hundred twenty".