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130312110220 = 22562861103651
BaseRepresentation
bin111100101011100110…
…1010000000010001100
3110110100200020002100121
41321113031100002030
54113334400011340
6135510424434324
712262153442455
oct1712715200214
9413320202317
10130312110220
11502a0875166
12213093189a4
13c399752836
146442b1212c
1535ca46594a
hex1e5735008c

130312110220 has 24 divisors (see below), whose sum is σ = 273662425008. Its totient is φ = 52123512000.

The previous prime is 130312110211. The next prime is 130312110259. The reversal of 130312110220 is 22011213031.

It is a junction number, because it is equal to n+sod(n) for n = 130312110194 and 130312110203.

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, 1205395 + ... + 1309045.

It is an arithmetic number, because the mean of its divisors is an integer number (11402601042).

Almost surely, 2130312110220 is an apocalyptic number.

130312110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130312110220 is an abundant number, since it is smaller than the sum of its proper divisors (143350314788).

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

130312110220 is a wasteful number, since it uses less digits than its factorization.

130312110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166521 (or 166519 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 130312110220 its reverse (22011213031), we get a palindrome (152323323251).

The spelling of 130312110220 in words is "one hundred thirty billion, three hundred twelve million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 62861 103651 125722 207302 251444 314305 414604 518255 628610 1036510 1257220 2073020 6515605511 13031211022 26062422044 32578027555 65156055110 130312110220