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49288591660 = 225711233137363
BaseRepresentation
bin101101111001110101…
…000011100100101100
311201020000011212211211
4231321311003210230
51301420334413120
634350505324204
73363263054650
oct557165034454
9151200155754
1049288591660
11199a3141480
129676796664
134856567a49
142558066a60
1514371bc25a
hexb79d4392c

49288591660 has 96 divisors (see below), whose sum is σ = 129601285632. Its totient is φ = 15296632320.

The previous prime is 49288591591. The next prime is 49288591679. The reversal of 49288591660 is 6619588294.

It is a junction number, because it is equal to n+sod(n) for n = 49288591595 and 49288591604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290139 + ... + 427501.

It is an arithmetic number, because the mean of its divisors is an integer number (1350013392).

Almost surely, 249288591660 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 49288591660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64800642816).

49288591660 is an abundant number, since it is smaller than the sum of its proper divisors (80312693972).

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

49288591660 is a wasteful number, since it uses less digits than its factorization.

49288591660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137623 (or 137621 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 49288591660 in words is "forty-nine billion, two hundred eighty-eight million, five hundred ninety-one thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 233 308 385 466 770 932 1165 1540 1631 2330 2563 3262 4660 5126 6524 8155 10252 12815 16310 17941 25630 32620 35882 51260 71764 89705 137363 179410 274726 358820 549452 686815 961541 1373630 1510993 1923082 2747260 3021986 3846164 4807705 6043972 7554965 9615410 10576951 15109930 19230820 21153902 30219860 32005579 42307804 52884755 64011158 105769510 128022316 160027895 211539020 224039053 320055790 352061369 448078106 640111580 704122738 896156212 1120195265 1408245476 1760306845 2240390530 2464429583 3520613690 4480781060 4928859166 7041227380 9857718332 12322147915 24644295830 49288591660