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2806020480 = 27358916421
BaseRepresentation
bin1010011101000000…
…0111100110000000
321020120000121110110
42213100013212000
521221320123410
61142234431320
7126351531504
oct24720074600
97216017413
102806020480
11120aa1a79a
12663892540
13359457663
141c8950304
15116528720
hexa7407980

2806020480 has 128 divisors (see below), whose sum is σ = 9045237600. Its totient is φ = 739819520.

The previous prime is 2806020473. The next prime is 2806020551. The reversal of 2806020480 is 840206082.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 162670 + ... + 179090.

Almost surely, 22806020480 is an apocalyptic number.

2806020480 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 2806020480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4522618800).

2806020480 is an abundant number, since it is smaller than the sum of its proper divisors (6239217120).

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

2806020480 is a wasteful number, since it uses less digits than its factorization.

2806020480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16532 (or 16520 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 2806020480 is about 52971.8838630457. The cubic root of 2806020480 is about 1410.4692166058.

The spelling of 2806020480 in words is "two billion, eight hundred six million, twenty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 89 96 120 128 160 178 192 240 267 320 356 384 445 480 534 640 712 890 960 1068 1335 1424 1780 1920 2136 2670 2848 3560 4272 5340 5696 7120 8544 10680 11392 14240 16421 17088 21360 28480 32842 34176 42720 49263 56960 65684 82105 85440 98526 131368 164210 170880 197052 246315 262736 328420 394104 492630 525472 656840 788208 985260 1050944 1313680 1461469 1576416 1970520 2101888 2627360 2922938 3152832 3941040 4384407 5254720 5845876 6305664 7307345 7882080 8768814 10509440 11691752 14614690 15764160 17537628 21922035 23383504 29229380 31528320 35075256 43844070 46767008 58458760 70150512 87688140 93534016 116917520 140301024 175376280 187068032 233835040 280602048 350752560 467670080 561204096 701505120 935340160 1403010240 2806020480