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131222230310 = 2579166104089
BaseRepresentation
bin111101000110101110…
…1000101010100100110
3110112201002202222102002
41322031131011110212
54122220342332220
6140141015445302
712323544361013
oct1721535052446
9415632688362
10131222230310
1150718589926
1221522086832
13c4b3180632
1464cb94470a
1536302e0c75
hex1e8d745526

131222230310 has 16 divisors (see below), whose sum is σ = 239189889600. Its totient is φ = 51824475456.

The previous prime is 131222230277. The next prime is 131222230313. The reversal of 131222230310 is 13032222131.

It is a super-2 number, since 2×1312222303102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222230313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83051255 + ... + 83052834.

It is an arithmetic number, because the mean of its divisors is an integer number (14949368100).

Almost surely, 2131222230310 is an apocalyptic number.

131222230310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222230310 is a deficient number, since it is larger than the sum of its proper divisors (107967659290).

131222230310 is a wasteful number, since it uses less digits than its factorization.

131222230310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166104175.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131222230310 its reverse (13032222131), we get a palindrome (144254452441).

The spelling of 131222230310 in words is "one hundred thirty-one billion, two hundred twenty-two million, two hundred thirty thousand, three hundred ten".

Divisors: 1 2 5 10 79 158 395 790 166104089 332208178 830520445 1661040890 13122223031 26244446062 65611115155 131222230310