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130212011220 = 22352170200187
BaseRepresentation
bin111100101000100111…
…1011001110011010100
3110110002200212112100020
41321101033121303110
54113133233324340
6135452451145140
712256526555604
oct1712117316324
9413080775306
10130212011220
115024a316315
122129b8a51b0
13c381aa5c65
1464336d6c04
1535c17919d0
hex1e513d9cd4

130212011220 has 24 divisors (see below), whose sum is σ = 364593631584. Its totient is φ = 34723202976.

The previous prime is 130212011197. The next prime is 130212011227. The reversal of 130212011220 is 22110212031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 130212011220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130212011227) 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, 1085100034 + ... + 1085100153.

It is an arithmetic number, because the mean of its divisors is an integer number (15191401316).

Almost surely, 2130212011220 is an apocalyptic number.

130212011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130212011220 is an abundant number, since it is smaller than the sum of its proper divisors (234381620364).

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

130212011220 is a wasteful number, since it uses less digits than its factorization.

130212011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170200199 (or 2170200197 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 130212011220 its reverse (22110212031), we get a palindrome (152322223251).

The spelling of 130212011220 in words is "one hundred thirty billion, two hundred twelve million, eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2170200187 4340400374 6510600561 8680800748 10851000935 13021201122 21702001870 26042402244 32553002805 43404003740 65106005610 130212011220