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131405104230 = 23531141295811
BaseRepresentation
bin111101001100001011…
…0101100010001100110
3110120011211212221021020
41322120112230101212
54123104201313410
6140211111232010
712331224646101
oct1723026542146
9416154787236
10131405104230
11508018347a4
1221573378606
13c51201c65a
146507d49738
1536413b5a70
hex1e985ac466

131405104230 has 32 divisors (see below), whose sum is σ = 325545550848. Its totient is φ = 33910994400.

The previous prime is 131405104213. The next prime is 131405104247. The reversal of 131405104230 is 32401504131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131405104213) and next prime (131405104247).

It is a self number, because there is not a number n which added to its sum of digits gives 131405104230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70646976 + ... + 70648835.

It is an arithmetic number, because the mean of its divisors is an integer number (10173298464).

Almost surely, 2131405104230 is an apocalyptic number.

131405104230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131405104230 is an abundant number, since it is smaller than the sum of its proper divisors (194140446618).

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

131405104230 is a wasteful number, since it uses less digits than its factorization.

131405104230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141295852.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 131405104230 its reverse (32401504131), we get a palindrome (163806608361).

The spelling of 131405104230 in words is "one hundred thirty-one billion, four hundred five million, one hundred four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 141295811 282591622 423887433 706479055 847774866 1412958110 2119437165 4238874330 4380170141 8760340282 13140510423 21900850705 26281020846 43801701410 65702552115 131405104230