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4492872540 = 223251317532131
BaseRepresentation
bin1000010111100101…
…11100101101011100
3102121010010120110200
410023302330231130
533200133410130
62021453503500
7216223533522
oct41362745534
912533116420
104492872540
1119a6122702
12a547a1b90
13567a7c580
143089b2312
151b4681760
hex10bcbcb5c

4492872540 has 288 divisors, whose sum is σ = 15840691776. Its totient is φ = 1020764160.

The previous prime is 4492872529. The next prime is 4492872581. The reversal of 4492872540 is 452782944.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2107275 + ... + 2109405.

It is an arithmetic number, because the mean of its divisors is an integer number (55002402).

Almost surely, 24492872540 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 4492872540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7920345888).

4492872540 is an abundant number, since it is smaller than the sum of its proper divisors (11347819236).

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

4492872540 is a wasteful number, since it uses less digits than its factorization.

4492872540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 4492872540 is about 67028.8933222084. The cubic root of 4492872540 is about 1650.0915210943.

The spelling of 4492872540 in words is "four billion, four hundred ninety-two million, eight hundred seventy-two thousand, five hundred forty".