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680201258285 = 5200461678637
BaseRepresentation
bin10011110010111110010…
…01111000010100101101
32102000201101200002221202
421321133021320110231
542121023010231120
61240251413335245
7100100010204323
oct11713711702455
92360641602852
10680201258285
11242520971a3a
12ab9b2037525
134c1b169a263
1424cc9a4bd13
1512a60d43875
hex9e5f27852d

680201258285 has 8 divisors (see below), whose sum is σ = 816246784536. Its totient is φ = 544157490240.

The previous prime is 680201258281. The next prime is 680201258299. The reversal of 680201258285 is 582852102086.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5342294281 + 674858964004 = 73091^2 + 821498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680201258285 - 22 = 680201258281 is a prime.

It is a super-2 number, since 2×6802012582852 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680201258281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662987 + ... + 1341623.

It is an arithmetic number, because the mean of its divisors is an integer number (102030848067).

Almost surely, 2680201258285 is an apocalyptic number.

It is an amenable number.

680201258285 is a deficient number, since it is larger than the sum of its proper divisors (136045526251).

680201258285 is a wasteful number, since it uses less digits than its factorization.

680201258285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879103.

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 680201258285 in words is "six hundred eighty billion, two hundred one million, two hundred fifty-eight thousand, two hundred eighty-five".

Divisors: 1 5 200461 678637 1002305 3393185 136040251657 680201258285