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1682430080 = 2754197661
BaseRepresentation
bin110010001000111…
…1101100010000000
311100020210022012012
41210101331202000
511421200230310
6434540152052
756456263652
oct14421754200
94306708165
101682430080
11793762691
123ab538628
1320a737276
1411d6306d2
159ca82c05
hex6447d880

1682430080 has 128 divisors (see below), whose sum is σ = 4168931760. Its totient is φ = 648806400.

The previous prime is 1682430077. The next prime is 1682430137. The reversal of 1682430080 is 800342861.

It can be written as a sum of positive squares in 8 ways, for example, as 480837184 + 1201592896 = 21928^2 + 34664^2 .

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 (32).

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, 2544950 + ... + 2545610.

Almost surely, 21682430080 is an apocalyptic number.

1682430080 is a gapful number since it is divisible by the number (10) 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 1682430080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2084465880).

1682430080 is an abundant number, since it is smaller than the sum of its proper divisors (2486501680).

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

1682430080 is an equidigital number, since it uses as much as digits as its factorization.

1682430080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1682430080 is about 41017.4362923867. The cubic root of 1682430080 is about 1189.3572971816.

The spelling of 1682430080 in words is "one billion, six hundred eighty-two million, four hundred thirty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 64 80 82 97 128 160 164 194 205 320 328 388 410 485 640 656 661 776 820 970 1312 1322 1552 1640 1940 2624 2644 3104 3280 3305 3880 3977 5248 5288 6208 6560 6610 7760 7954 10576 12416 13120 13220 15520 15908 19885 21152 26240 26440 27101 31040 31816 39770 42304 52880 54202 62080 63632 64117 79540 84608 105760 108404 127264 128234 135505 159080 211520 216808 254528 256468 271010 318160 320585 423040 433616 509056 512936 542020 636320 641170 867232 1025872 1084040 1272640 1282340 1734464 2051744 2168080 2545280 2564680 2628797 3468928 4103488 4336160 5129360 5257594 8206976 8672320 10258720 10515188 13143985 17344640 20517440 21030376 26287970 41034880 42060752 52575940 84121504 105151880 168243008 210303760 336486016 420607520 841215040 1682430080