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6379980800 = 211523532
BaseRepresentation
bin1011111000100011…
…01100100000000000
3121110122001121100012
411330101230200000
5101031233341200
62533025044052
7314046641054
oct57421544000
917418047305
106379980800
112784373006
1212a0786628
137a8a1b28b
14447481c64
15275194a35
hex17c46c800

6379980800 has 108 divisors (see below), whose sum is σ = 15863428035. Its totient is φ = 2544762880.

The previous prime is 6379980799. The next prime is 6379980851. The reversal of 6379980800 is 80899736.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 1738556416 + 4641424384 = 41696^2 + 68128^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=56480.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18073424 + ... + 18073776.

Almost surely, 26379980800 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 6379980800

6379980800 is an abundant number, since it is smaller than the sum of its proper divisors (9483447235).

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

6379980800 is an frugal number, since it uses more digits than its factorization.

6379980800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 6379980800 is about 79874.7820028324. The cubic root of 6379980800 is about 1854.6976594990.

Multiplying 6379980800 by its sum of digits (50), we get a square (318999040000 = 5648002).

6379980800 divided by its sum of digits (50) gives a square (127599616 = 112962).

The spelling of 6379980800 in words is "six billion, three hundred seventy-nine million, nine hundred eighty thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 353 400 512 640 706 800 1024 1280 1412 1600 1765 2048 2560 2824 3200 3530 5120 5648 6400 7060 8825 10240 11296 12800 14120 17650 22592 25600 28240 35300 45184 51200 56480 70600 90368 112960 124609 141200 180736 225920 249218 282400 361472 451840 498436 564800 623045 722944 903680 996872 1129600 1246090 1807360 1993744 2259200 2492180 3115225 3614720 3987488 4518400 4984360 6230450 7974976 9036800 9968720 12460900 15949952 18073600 19937440 24921800 31899904 39874880 49843600 63799808 79749760 99687200 127599616 159499520 199374400 255199232 318999040 398748800 637998080 797497600 1275996160 1594995200 3189990400 6379980800