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5255705280 = 263573125229
BaseRepresentation
bin1001110010100001…
…11011001011000000
3111120021112111021010
410321100323023000
541230430032110
62225304000520
7244145520630
oct47120731300
914507474233
105255705280
112257788191
121028160140
13659b1b0a7
1437c0246c0
1520b616020
hex13943b2c0

5255705280 has 224 divisors, whose sum is σ = 19686666240. Its totient is φ = 1162506240.

The previous prime is 5255705269. The next prime is 5255705281. The reversal of 5255705280 is 825075525.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (5255705281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195706 + ... + 220934.

Almost surely, 25255705280 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 5255705280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9843333120).

5255705280 is an abundant number, since it is smaller than the sum of its proper divisors (14430960960).

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

5255705280 is a wasteful number, since it uses less digits than its factorization.

5255705280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25287 (or 25277 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 5255705280 is about 72496.2432130107. The cubic root of 5255705280 is about 1738.6426724684.

The spelling of 5255705280 in words is "five billion, two hundred fifty-five million, seven hundred five thousand, two hundred eighty".