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2438298720 = 2533511133947
BaseRepresentation
bin1001000101010101…
…0111110001100000
320021221002102001000
42101111113301200
514443201024340
61041541112000
7114265124424
oct22125276140
96257072030
102438298720
1110413a0a10
125806b8600
132cb208010
14191b8cb84
15e40ddd30
hex91557c60

2438298720 has 384 divisors, whose sum is σ = 10028551680. Its totient is φ = 545495040.

The previous prime is 2438298691. The next prime is 2438298721. The reversal of 2438298720 is 278928342.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2438298721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 615787 + ... + 619733.

It is an arithmetic number, because the mean of its divisors is an integer number (26116020).

Almost surely, 22438298720 is an apocalyptic number.

2438298720 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 2438298720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5014275840).

2438298720 is an abundant number, since it is smaller than the sum of its proper divisors (7590252960).

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

2438298720 is a wasteful number, since it uses less digits than its factorization.

2438298720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995 (or 3981 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2438298720 is about 49379.1324346631. The cubic root of 2438298720 is about 1345.9501345611.

The spelling of 2438298720 in words is "two billion, four hundred thirty-eight million, two hundred ninety-eight thousand, seven hundred twenty".