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4990279392 = 2532737149449
BaseRepresentation
bin1001010010111000…
…11001111011100000
3110212210002110101200
410221130121323200
540210002420032
62143103001200
7234443450340
oct45134317340
913783073350
104990279392
11213097884a
12b73299200
13616b37257
14354a90d20
151e318647c
hex129719ee0

4990279392 has 288 divisors, whose sum is σ = 16805880000. Its totient is φ = 1374879744.

The previous prime is 4990279391. The next prime is 4990279403. The reversal of 4990279392 is 2939720994.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990279391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11113984 + ... + 11114432.

It is an arithmetic number, because the mean of its divisors is an integer number (58353750).

Almost surely, 24990279392 is an apocalyptic number.

4990279392 is a gapful number since it is divisible by the number (42) 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 4990279392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8402940000).

4990279392 is an abundant number, since it is smaller than the sum of its proper divisors (11815600608).

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

4990279392 is a wasteful number, since it uses less digits than its factorization.

4990279392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 4990279392 is about 70641.9096004631. The cubic root of 4990279392 is about 1708.8670940600.

The spelling of 4990279392 in words is "four billion, nine hundred ninety million, two hundred seventy-nine thousand, three hundred ninety-two".