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2400030320 = 245594991019
BaseRepresentation
bin1000111100001101…
…1000111001110000
320012021002011122212
42033003120321300
514403401432240
61034052551252
7113321630642
oct21703307160
96167064585
102400030320
111021833336
1256b922528
132c32c96ac
1418aa6a892
15e0a80165
hex8f0d8e70

2400030320 has 80 divisors (see below), whose sum is σ = 5691600000. Its totient is φ = 940925184.

The previous prime is 2400030319. The next prime is 2400030331. The reversal of 2400030320 is 230300042.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2400030295 and 2400030304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2354771 + ... + 2355789.

It is an arithmetic number, because the mean of its divisors is an integer number (71145000).

Almost surely, 22400030320 is an apocalyptic number.

2400030320 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 2400030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2845800000).

2400030320 is an abundant number, since it is smaller than the sum of its proper divisors (3291569680).

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

2400030320 is a wasteful number, since it uses less digits than its factorization.

2400030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 2400030320 is about 48990.1043068904. The cubic root of 2400030320 is about 1338.8715382537.

Adding to 2400030320 its reverse (230300042), we get a palindrome (2630330362).

The spelling of 2400030320 in words is "two billion, four hundred million, thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 59 80 118 236 295 472 499 590 944 998 1019 1180 1996 2038 2360 2495 3992 4076 4720 4990 5095 7984 8152 9980 10190 16304 19960 20380 29441 39920 40760 58882 60121 81520 117764 120242 147205 235528 240484 294410 300605 471056 480968 508481 588820 601210 961936 1016962 1177640 1202420 2033924 2355280 2404840 2542405 4067848 4809680 5084810 8135696 10169620 20339240 30000379 40678480 60000758 120001516 150001895 240003032 300003790 480006064 600007580 1200015160 2400030320