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130631124345 = 35174671096957
BaseRepresentation
bin111100110101000111…
…0001100010101111001
3110111011220111200110120
41321222032030111321
54120013031434340
6140002222203453
712303106144011
oct1715216142571
9414156450416
10130631124345
11504449561a7
1221398123589
13c41a87a0a7
146473234c41
1535e847d4d0
hex1e6a38c579

130631124345 has 32 divisors (see below), whose sum is σ = 221778580608. Its totient is φ = 65431231488.

The previous prime is 130631124343. The next prime is 130631124391. The reversal of 130631124345 is 543421136031.

It is not a de Polignac number, because 130631124345 - 21 = 130631124343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130631124343) 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, 429394 + ... + 667563.

It is an arithmetic number, because the mean of its divisors is an integer number (6930580644).

Almost surely, 2130631124345 is an apocalyptic number.

130631124345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130631124345 is a deficient number, since it is larger than the sum of its proper divisors (91147456263).

130631124345 is a wasteful number, since it uses less digits than its factorization.

130631124345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097449.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 130631124345 in words is "one hundred thirty billion, six hundred thirty-one million, one hundred twenty-four thousand, three hundred forty-five".

Divisors: 1 3 5 15 17 51 85 255 467 1401 2335 7005 7939 23817 39695 119085 1096957 3290871 5484785 16454355 18648269 55944807 93241345 279724035 512278919 1536836757 2561394595 7684183785 8708741623 26126224869 43543708115 130631124345