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131222230330 = 2513122223033
BaseRepresentation
bin111101000110101110…
…1000101010100111010
3110112201002202222102211
41322031131011110322
54122220342332310
6140141015445334
712323544361042
oct1721535052472
9415632688384
10131222230330
1150718589944
122152208684a
13c4b3180649
1464cb944722
1536302e0c8a
hex1e8d74553a

131222230330 has 8 divisors (see below), whose sum is σ = 236200014612. Its totient is φ = 52488892128.

The previous prime is 131222230319. The next prime is 131222230421. The reversal of 131222230330 is 33032222131.

It can be written as a sum of positive squares in 2 ways, for example, as 121192408129 + 10029822201 = 348127^2 + 100149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6561111507 + ... + 6561111526.

Almost surely, 2131222230330 is an apocalyptic number.

131222230330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222230330 is a deficient number, since it is larger than the sum of its proper divisors (104977784282).

131222230330 is a wasteful number, since it uses less digits than its factorization.

131222230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13122223040.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 131222230330 its reverse (33032222131), we get a palindrome (164254452461).

The spelling of 131222230330 in words is "one hundred thirty-one billion, two hundred twenty-two million, two hundred thirty thousand, three hundred thirty".

Divisors: 1 2 5 10 13122223033 26244446066 65611115165 131222230330