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61797060 = 22335138803
BaseRepresentation
bin1110101110111…
…1001011000100
311022021121122000
43223233023010
5111310001220
610044305300
71350160233
oct353571304
9138247560
1061797060
1131979056
1218842230
13ca58c10
1482c8b1a
15565a390
hex3aef2c4

61797060 has 96 divisors (see below), whose sum is σ = 207070080. Its totient is φ = 15209856.

The previous prime is 61797059. The next prime is 61797079. The reversal of 61797060 is 6079716.

61797060 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

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

61797060 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2619 + ... + 11421.

It is an arithmetic number, because the mean of its divisors is an integer number (2156980).

Almost surely, 261797060 is an apocalyptic number.

61797060 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 61797060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103535040).

61797060 is an abundant number, since it is smaller than the sum of its proper divisors (145273020).

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

61797060 is a wasteful number, since it uses less digits than its factorization.

61797060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8834 (or 8826 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 61797060 is about 7861.1106085591. The cubic root of 61797060 is about 395.3568531788.

The spelling of 61797060 in words is "sixty-one million, seven hundred ninety-seven thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020 8803 17606 26409 35212 44015 52818 79227 88030 105636 114439 132045 158454 176060 228878 237681 264090 316908 343317 396135 457756 475362 528180 572195 686634 792270 950724 1029951 1144390 1188405 1373268 1584540 1716585 2059902 2288780 2376810 3089853 3433170 4119804 4753620 5149755 6179706 6866340 10299510 12359412 15449265 20599020 30898530 61797060