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130123320020 = 22533191960279
BaseRepresentation
bin111100100101111110…
…1000100101011010100
3110102212111222112212222
41321023331010223110
54112443032220040
6135440002201512
712254401653641
oct1711375045324
9412774875788
10130123320020
1150204249301
1221276053298
13c3695c1965
146425a0adc8
1535b8ac2bb5
hex1e4bf44ad4

130123320020 has 24 divisors (see below), whose sum is σ = 273341443200. Its totient is φ = 52033619232.

The previous prime is 130123320013. The next prime is 130123320023. The reversal of 130123320020 is 20023321031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130123320023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913760 + ... + 1046519.

It is an arithmetic number, because the mean of its divisors is an integer number (11389226800).

Almost surely, 2130123320020 is an apocalyptic number.

130123320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130123320020 is an abundant number, since it is smaller than the sum of its proper divisors (143218123180).

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

130123320020 is a wasteful number, since it uses less digits than its factorization.

130123320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963607 (or 1963605 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 130123320020 its reverse (20023321031), we get a palindrome (150146641051).

The spelling of 130123320020 in words is "one hundred thirty billion, one hundred twenty-three million, three hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 3319 6638 13276 16595 33190 66380 1960279 3920558 7841116 9801395 19602790 39205580 6506166001 13012332002 26024664004 32530830005 65061660010 130123320020