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5389392720 = 243538957727
BaseRepresentation
bin1010000010011101…
…11001101101010000
3111220121002111221210
411001032321231100
542014141031340
62250441220120
7250361040135
oct50116715520
914817074853
105389392720
112316198578
121064a91640
1367b72809a
14391aa458c
15218222180
hex1413b9b50

5389392720 has 80 divisors (see below), whose sum is σ = 16750356480. Its totient is φ = 1433452032.

The previous prime is 5389392667. The next prime is 5389392727. The reversal of 5389392720 is 272939835.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 5389392720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5389392727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64497 + ... + 122223.

It is an arithmetic number, because the mean of its divisors is an integer number (209379456).

Almost surely, 25389392720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5389392720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8375178240).

5389392720 is an abundant number, since it is smaller than the sum of its proper divisors (11360963760).

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

5389392720 is a wasteful number, since it uses less digits than its factorization.

5389392720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58132 (or 58126 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 5389392720 is about 73412.4834071154. The cubic root of 5389392720 is about 1753.2611538410.

The spelling of 5389392720 in words is "five billion, three hundred eighty-nine million, three hundred ninety-two thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 389 778 1167 1556 1945 2334 3112 3890 4668 5835 6224 7780 9336 11670 15560 18672 23340 31120 46680 57727 93360 115454 173181 230908 288635 346362 461816 577270 692724 865905 923632 1154540 1385448 1731810 2309080 2770896 3463620 4618160 6927240 13854480 22455803 44911606 67367409 89823212 112279015 134734818 179646424 224558030 269469636 336837045 359292848 449116060 538939272 673674090 898232120 1077878544 1347348180 1796464240 2694696360 5389392720