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130621776285 = 35711138699419
BaseRepresentation
bin111100110100110101…
…0100010000110011101
3110111011020220202100010
41321221222202012131
54120003133320120
6140001245553433
712302633531130
oct1715152420635
9414136822303
10130621776285
115043a650930
1221394b75879
13c4189561b0
146471cc0217
1535e77337e0
hex1e69aa219d

130621776285 has 64 divisors (see below), whose sum is σ = 280608491520. Its totient is φ = 50108647680.

The previous prime is 130621776163. The next prime is 130621776319. The reversal of 130621776285 is 582677126031.

It is not a de Polignac number, because 130621776285 - 28 = 130621776029 is a prime.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 4334695 + ... + 4364724.

It is an arithmetic number, because the mean of its divisors is an integer number (4384507680).

Almost surely, 2130621776285 is an apocalyptic number.

130621776285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130621776285 is an abundant number, since it is smaller than the sum of its proper divisors (149986715235).

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

130621776285 is a wasteful number, since it uses less digits than its factorization.

130621776285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8699458.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 130621776285 in words is "one hundred thirty billion, six hundred twenty-one million, seven hundred seventy-six thousand, two hundred eighty-five".

Divisors: 1 3 5 7 11 13 15 21 33 35 39 55 65 77 91 105 143 165 195 231 273 385 429 455 715 1001 1155 1365 2145 3003 5005 15015 8699419 26098257 43497095 60895933 95693609 113092447 130491285 182687799 287080827 304479665 339277341 478468045 565462235 669855263 791647129 913438995 1244016917 1435404135 1696386705 2009565789 2374941387 3349276315 3732050751 3958235645 6220084585 8708118419 10047828945 11874706935 18660253755 26124355257 43540592095 130621776285