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130282705780 = 225531011216913
BaseRepresentation
bin111100101010101110…
…1000101001101110100
3110110021121220012001021
41321111131011031310
54113304333041110
6135503454310524
712261345504313
oct1712535051564
9413247805037
10130282705780
1150286211177
12212bb4b8444
13c393628966
14643cc5a27a
1535c7aa82da
hex1e55745374

130282705780 has 48 divisors (see below), whose sum is σ = 281516017104. Its totient is φ = 50623539200.

The previous prime is 130282705757. The next prime is 130282705783. The reversal of 130282705780 is 87507282031.

It can be written as a sum of positive squares in 8 ways, for example, as 36516916836 + 93765788944 = 191094^2 + 306212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130282705783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501397 + ... + 715516.

It is an arithmetic number, because the mean of its divisors is an integer number (5864917023).

Almost surely, 2130282705780 is an apocalyptic number.

130282705780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130282705780 is an abundant number, since it is smaller than the sum of its proper divisors (151233311324).

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

130282705780 is a wasteful number, since it uses less digits than its factorization.

130282705780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217076 (or 1217074 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 130282705780 in words is "one hundred thirty billion, two hundred eighty-two million, seven hundred five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 53 101 106 202 212 265 404 505 530 1010 1060 2020 5353 10706 21412 26765 53530 107060 1216913 2433826 4867652 6084565 12169130 24338260 64496389 122908213 128992778 245816426 257985556 322481945 491632852 614541065 644963890 1229082130 1289927780 2458164260 6514135289 13028270578 26056541156 32570676445 65141352890 130282705780