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680772060 = 223351498461
BaseRepresentation
bin101000100100111…
…100000111011100
31202102222210201000
4220210330013130
52343234201220
6151315150300
722604316123
oct5044740734
91672883630
10680772060
1131a307141
1216bba5390
13ab069507
14665b0aba
153eb75390
hex2893c1dc

680772060 has 96 divisors (see below), whose sum is σ = 2132424000. Its totient is φ = 180299520.

The previous prime is 680772049. The next prime is 680772061. The reversal of 680772060 is 60277086.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680772061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76230 + ... + 84690.

It is an arithmetic number, because the mean of its divisors is an integer number (22212750).

Almost surely, 2680772060 is an apocalyptic number.

680772060 is a gapful number since it is divisible by the number (60) 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 680772060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066212000).

680772060 is an abundant number, since it is smaller than the sum of its proper divisors (1451651940).

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

680772060 is a wasteful number, since it uses less digits than its factorization.

680772060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628 (or 8620 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 680772060 is about 26091.6089959972. The cubic root of 680772060 is about 879.6986140784.

The spelling of 680772060 in words is "six hundred eighty million, seven hundred seventy-two thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 149 180 270 298 447 540 596 745 894 1341 1490 1788 2235 2682 2980 4023 4470 5364 6705 8046 8461 8940 13410 16092 16922 20115 25383 26820 33844 40230 42305 50766 76149 80460 84610 101532 126915 152298 169220 228447 253830 304596 380745 456894 507660 761490 913788 1142235 1260689 1522980 2284470 2521378 3782067 4568940 5042756 6303445 7564134 11346201 12606890 15128268 18910335 22692402 25213780 34038603 37820670 45384804 56731005 68077206 75641340 113462010 136154412 170193015 226924020 340386030 680772060