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4890401280 = 293253141167
BaseRepresentation
bin1001000110111110…
…11001101000000000
3110121211011010101100
410203133121220000
540003420320110
62125134134400
7232121503452
oct44337315000
913554133340
104890401280
11208a55a956
12b45951400
135cc23708b
143456d22d2
151d9507bc0
hex1237d9a00

4890401280 has 480 divisors, whose sum is σ = 18016846848. Its totient is φ = 1223884800.

The previous prime is 4890401273. The next prime is 4890401291. The reversal of 4890401280 is 821040984.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29283757 + ... + 29283923.

Almost surely, 24890401280 is an apocalyptic number.

4890401280 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 4890401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9008423424).

4890401280 is an abundant number, since it is smaller than the sum of its proper divisors (13126445568).

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

4890401280 is a wasteful number, since it uses less digits than its factorization.

4890401280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 4890401280 is about 69931.4041043078. The cubic root of 4890401280 is about 1697.3894511497.

The spelling of 4890401280 in words is "four billion, eight hundred ninety million, four hundred one thousand, two hundred eighty".