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4981798080 = 26345727457
BaseRepresentation
bin1001010001111000…
…00011010011000000
3110212012010120020000
410220330003103000
540200320014310
62142201120000
7234311404440
oct45074032300
913765116200
104981798080
1121271056a6
12b70489000
13615157a1c
143538c4120
151e255d4c0
hex128f034c0

4981798080 has 280 divisors, whose sum is σ = 20253460128. Its totient is φ = 1138655232.

The previous prime is 4981798061. The next prime is 4981798093. The reversal of 4981798080 is 808971894.

4981798080 is a `hidden beast` number, since 498 + 1 + 79 + 8 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 167712 + ... + 195168.

Almost surely, 24981798080 is an apocalyptic number.

4981798080 is a gapful number since it is divisible by the number (40) 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 4981798080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10126730064).

4981798080 is an abundant number, since it is smaller than the sum of its proper divisors (15271662048).

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

4981798080 is a wasteful number, since it uses less digits than its factorization.

4981798080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27493 (or 27474 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 4981798080 is about 70581.8537585972. The cubic root of 4981798080 is about 1707.8984339600.

The spelling of 4981798080 in words is "four billion, nine hundred eighty-one million, seven hundred ninety-eight thousand, eighty".