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130531939813 = 11231123459427
BaseRepresentation
bin111100110010001001…
…1110101010111100101
3110110220222212120212101
41321210103311113211
54114312134033223
6135544320252101
712300463116202
oct1714423652745
9413828776771
10130531939813
11503a3971410
122136aa71031
13c403160812
146463db6ca9
1535de8da4ad
hex1e644f55e5

130531939813 has 16 divisors (see below), whose sum is σ = 148722356736. Its totient is φ = 113404713840.

The previous prime is 130531939709. The next prime is 130531939849. The reversal of 130531939813 is 318939135031.

It is not a de Polignac number, because 130531939813 - 217 = 130531808741 is a prime.

It is a super-2 number, since 2×1305319398132 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130531939873) 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, 54406 + ... + 513832.

It is an arithmetic number, because the mean of its divisors is an integer number (9295147296).

Almost surely, 2130531939813 is an apocalyptic number.

It is an amenable number.

130531939813 is a deficient number, since it is larger than the sum of its proper divisors (18190416923).

130531939813 is a wasteful number, since it uses less digits than its factorization.

130531939813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460584.

The product of its (nonzero) digits is 262440, while the sum is 46.

The spelling of 130531939813 in words is "one hundred thirty billion, five hundred thirty-one million, nine hundred thirty-nine thousand, eight hundred thirteen".

Divisors: 1 11 23 253 1123 12353 25829 284119 459427 5053697 10566821 116235031 515936521 5675301731 11866539983 130531939813