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680669000 = 23531161879
BaseRepresentation
bin101000100100100…
…010111101001000
31202102210120022222
4220210202331020
52343222402000
6151313033212
722603406504
oct5044427510
91672716288
10680669000
1131a246770
1216bb55808
13ab03162b
1466585304
153eb54a85
hex28922f48

680669000 has 64 divisors (see below), whose sum is σ = 1737590400. Its totient is φ = 247512000.

The previous prime is 680668999. The next prime is 680669047. The reversal of 680669000 is 966086.

It is a super-2 number, since 2×6806690002 = 926620575122000000, which contains 22 as substring.

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, 19940 + ... + 41939.

It is an arithmetic number, because the mean of its divisors is an integer number (27149850).

Almost surely, 2680669000 is an apocalyptic number.

It is an amenable number.

680669000 is an abundant number, since it is smaller than the sum of its proper divisors (1056921400).

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

680669000 is a wasteful number, since it uses less digits than its factorization.

680669000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61911 (or 61897 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 680669000 is about 26089.6339568036. The cubic root of 680669000 is about 879.6542202106.

The spelling of 680669000 in words is "six hundred eighty million, six hundred sixty-nine thousand".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 125 200 220 250 275 440 500 550 1000 1100 1375 2200 2750 5500 11000 61879 123758 247516 309395 495032 618790 680669 1237580 1361338 1546975 2475160 2722676 3093950 3403345 5445352 6187900 6806690 7734875 12375800 13613380 15469750 17016725 27226760 30939500 34033450 61879000 68066900 85083625 136133800 170167250 340334500 680669000