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130291312921 = 7112371713663
BaseRepresentation
bin111100101010111110…
…1111010100100011001
3110110022020002110211021
41321111331322210121
54113314034003141
6135504403002441
712261511613110
oct1712575724431
9413266073737
10130291312921
115029005a910
1221302369421
13c395350543
14644005ac77
1535c87086d1
hex1e55f7a919

130291312921 has 16 divisors (see below), whose sum is σ = 162509856768. Its totient is φ = 101482736400.

The previous prime is 130291312889. The next prime is 130291312933. The reversal of 130291312921 is 129213192031.

It is a cyclic number.

It is not a de Polignac number, because 130291312921 - 25 = 130291312889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130291312981) 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, 174265 + ... + 539398.

It is an arithmetic number, because the mean of its divisors is an integer number (10156866048).

Almost surely, 2130291312921 is an apocalyptic number.

130291312921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130291312921 is a deficient number, since it is larger than the sum of its proper divisors (32218543847).

130291312921 is a wasteful number, since it uses less digits than its factorization.

130291312921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716052.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 130291312921 in words is "one hundred thirty billion, two hundred ninety-one million, three hundred twelve thousand, nine hundred twenty-one".

Divisors: 1 7 11 77 2371 16597 26081 182567 713663 4995641 7850293 54952051 1692094973 11844664811 18613044703 130291312921