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3189480480 = 253254494933
BaseRepresentation
bin1011111000011011…
…1001110000100000
322020021120101200200
42332012321300200
523013001333410
61244253345200
7142016064624
oct27606716040
98207511620
103189480480
11139741898a
12750198200
133baa27674
1422384b184
1513a0213c0
hexbe1b9c20

3189480480 has 144 divisors (see below), whose sum is σ = 10910554200. Its totient is φ = 848461824.

The previous prime is 3189480479. The next prime is 3189480491. The reversal of 3189480480 is 840849813.

3189480480 is a `hidden beast` number, since 3 + 1 + 8 + 94 + 80 + 480 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2445500304 + 743980176 = 49452^2 + 27276^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644094 + ... + 649026.

Almost surely, 23189480480 is an apocalyptic number.

3189480480 is a gapful number since it is divisible by the number (30) 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 3189480480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5455277100).

3189480480 is an abundant number, since it is smaller than the sum of its proper divisors (7721073720).

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

3189480480 is a wasteful number, since it uses less digits than its factorization.

3189480480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403 (or 5392 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 3189480480 is about 56475.4856552823. The cubic root of 3189480480 is about 1471.9960666640.

The spelling of 3189480480 in words is "three billion, one hundred eighty-nine million, four hundred eighty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 449 480 720 898 1347 1440 1796 2245 2694 3592 4041 4490 4933 5388 6735 7184 8082 8980 9866 10776 13470 14368 14799 16164 17960 19732 20205 21552 24665 26940 29598 32328 35920 39464 40410 43104 44397 49330 53880 59196 64656 71840 73995 78928 80820 88794 98660 107760 118392 129312 147990 157856 161640 177588 197320 215520 221985 236784 295980 323280 355176 394640 443970 473568 591960 646560 710352 789280 887940 1183920 1420704 1775880 2214917 2367840 3551760 4429834 6644751 7103520 8859668 11074585 13289502 17719336 19934253 22149170 26579004 33223755 35438672 39868506 44298340 53158008 66447510 70877344 79737012 88596680 99671265 106316016 132895020 159474024 177193360 199342530 212632032 265790040 318948048 354386720 398685060 531580080 637896096 797370120 1063160160 1594740240 3189480480