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5130321280 = 27571975813
BaseRepresentation
bin1001100011100101…
…00111110110000000
3111020112121022202021
410301302213312000
541001330240110
62205024331224
7241064003620
oct46162476600
914215538667
105130321280
1121a2a29347
12bb2173b14
13639b5a686
14369506880
152005ea2da
hex131ca7d80

5130321280 has 128 divisors (see below), whose sum is σ = 14090345280. Its totient is φ = 1749737472.

The previous prime is 5130321227. The next prime is 5130321283. The reversal of 5130321280 is 821230315.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5130321283) 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, 879654 + ... + 885466.

Almost surely, 25130321280 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 5130321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7045172640).

5130321280 is an abundant number, since it is smaller than the sum of its proper divisors (8960024000).

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

5130321280 is a wasteful number, since it uses less digits than its factorization.

5130321280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 6024 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 5130321280 is about 71626.2611058263. The cubic root of 5130321280 is about 1724.7051269407.

Adding to 5130321280 its reverse (821230315), we get a palindrome (5951551595).

The spelling of 5130321280 in words is "five billion, one hundred thirty million, three hundred twenty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 197 224 280 320 394 448 560 640 788 896 985 1120 1379 1576 1970 2240 2758 3152 3940 4480 5516 5813 6304 6895 7880 11032 11626 12608 13790 15760 22064 23252 25216 27580 29065 31520 40691 44128 46504 55160 58130 63040 81382 88256 93008 110320 116260 126080 162764 176512 186016 203455 220640 232520 325528 372032 406910 441280 465040 651056 744064 813820 882560 930080 1145161 1302112 1627640 1860160 2290322 2604224 3255280 3720320 4580644 5208448 5725805 6510560 8016127 9161288 11451610 13021120 16032254 18322576 22903220 26042240 32064508 36645152 40080635 45806440 64129016 73290304 80161270 91612880 128258032 146580608 160322540 183225760 256516064 320645080 366451520 513032128 641290160 732903040 1026064256 1282580320 2565160640 5130321280