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2148153280 = 265713711039
BaseRepresentation
bin1000000000001010…
…0011011111000000
312112201010111022121
42000002203133000
513344411401110
6553054214024
7104143000360
oct20002433700
95481114277
102148153280
11a02638399
124bb4b4314
1328307a820
141654229a0
15c88c9cda
hex800a37c0

2148153280 has 224 divisors, whose sum is σ = 6390558720. Its totient is φ = 669634560.

The previous prime is 2148153257. The next prime is 2148153299. The reversal of 2148153280 is 823518412.

It is a happy number.

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

It is a super-2 number, since 2×21481532802 = 9229125028749516800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2067001 + ... + 2068039.

It is an arithmetic number, because the mean of its divisors is an integer number (28529280).

Almost surely, 22148153280 is an apocalyptic number.

2148153280 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 2148153280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3195279360).

2148153280 is an abundant number, since it is smaller than the sum of its proper divisors (4242405440).

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

2148153280 is a wasteful number, since it uses less digits than its factorization.

2148153280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 2148153280 is about 46348.1745055833. The cubic root of 2148153280 is about 1290.2932410296.

The spelling of 2148153280 in words is "two billion, one hundred forty-eight million, one hundred fifty-three thousand, two hundred eighty".