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130224434420 = 22550929127849
BaseRepresentation
bin111100101000111111…
…0110010110011110100
3110110010120020200202202
41321101332302303310
54113144423400140
6135454013324032
712260040300053
oct1712176626364
9413116220682
10130224434420
1150256331023
12212a3a96618
13c384535772
14643520c39a
1535c28e7915
hex1e51fb2cf4

130224434420 has 24 divisors (see below), whose sum is σ = 273478821000. Its totient is φ = 52088343552.

The previous prime is 130224434411. The next prime is 130224434441. The reversal of 130224434420 is 24434422031.

It can be written as a sum of positive squares in 4 ways, for example, as 18094554256 + 112129880164 = 134516^2 + 334858^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954656 + ... + 1082504.

It is an arithmetic number, because the mean of its divisors is an integer number (11394950875).

Almost surely, 2130224434420 is an apocalyptic number.

130224434420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130224434420 is an abundant number, since it is smaller than the sum of its proper divisors (143254386580).

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

130224434420 is a wasteful number, since it uses less digits than its factorization.

130224434420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178787 (or 178785 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 130224434420 its reverse (24434422031), we get a palindrome (154658856451).

The spelling of 130224434420 in words is "one hundred thirty billion, two hundred twenty-four million, four hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 50929 101858 127849 203716 254645 255698 509290 511396 639245 1018580 1278490 2556980 6511221721 13022443442 26044886884 32556108605 65112217210 130224434420