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680740848 = 24341074909
BaseRepresentation
bin101000100100110…
…100011111110000
31202102221012220000
4220210310133300
52343232201343
6151314350000
722604126124
oct5044643760
91672835800
10680740848
1131a295747
1216bb8b300
13ab058248
14665a3584
153eb6aed3
hex289347f0

680740848 has 100 divisors (see below), whose sum is σ = 1989080280. Its totient is φ = 224747136.

The previous prime is 680740847. The next prime is 680740849. The reversal of 680740848 is 848047086.

It is an interprime number because it is at equal distance from previous prime (680740847) and next prime (680740849).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680740847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136218 + ... + 141126.

Almost surely, 2680740848 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 680740848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994540140).

680740848 is an abundant number, since it is smaller than the sum of its proper divisors (1308339432).

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

680740848 is a wasteful number, since it uses less digits than its factorization.

680740848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 680740848 is about 26091.0108658135. The cubic root of 680740848 is about 879.6851697484.

The spelling of 680740848 in words is "six hundred eighty million, seven hundred forty thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 107 108 144 162 214 216 321 324 428 432 642 648 856 963 1284 1296 1712 1926 2568 2889 3852 4909 5136 5778 7704 8667 9818 11556 14727 15408 17334 19636 23112 29454 34668 39272 44181 46224 58908 69336 78544 88362 117816 132543 138672 176724 235632 265086 353448 397629 525263 530172 706896 795258 1050526 1060344 1575789 1590516 2101052 2120688 3151578 3181032 4202104 4727367 6303156 6362064 8404208 9454734 12606312 14182101 18909468 25212624 28364202 37818936 42546303 56728404 75637872 85092606 113456808 170185212 226913616 340370424 680740848