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2489384432640 = 21035728378161
BaseRepresentation
bin100100001110011010110…
…111111111010000000000
322210222112110222212102010
4210032122313333100000
5311241224403321030
65143335111452520
7344565160355430
oct44163267772000
98728473885363
102489384432640
1187a818683416
12342561987140
13150995308431
14886b5cb42c0
1544b4bbac6b0
hex2439adff400

2489384432640 has 352 divisors, whose sum is σ = 9103912038144. Its totient is φ = 568731893760.

The previous prime is 2489384432627. The next prime is 2489384432701. The reversal of 2489384432640 is 462344839842.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305030160 + ... + 305038320.

It is an arithmetic number, because the mean of its divisors is an integer number (25863386472).

Almost surely, 22489384432640 is an apocalyptic number.

2489384432640 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 2489384432640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4551956019072).

2489384432640 is an abundant number, since it is smaller than the sum of its proper divisors (6614527605504).

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

2489384432640 is a wasteful number, since it uses less digits than its factorization.

2489384432640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11033 (or 11015 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 57.

The spelling of 2489384432640 in words is "two trillion, four hundred eighty-nine billion, three hundred eighty-four million, four hundred thirty-two thousand, six hundred forty".