Search a number
-
+
131212442330234 = 21738210310099867
BaseRepresentation
bin11101110101011001000111…
…000000111110010001111010
3122012120210020201011021002222
4131311121013000332101322
5114144241040214031414
61143022055220524042
736431533432364666
oct3565310700762172
9565523221137088
10131212442330234
113889897aaa3171
1212871a25550622
13582a384847375
142458a04d678a6
15102820b77a68e
hex77564703e47a

131212442330234 has 16 divisors (see below), whose sum is σ = 208396797962688. Its totient is φ = 61746863973312.

The previous prime is 131212442330191. The next prime is 131212442330237. The reversal of 131212442330234 is 432033244212131.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131212442330194 and 131212442330203.

It is not an unprimeable number, because it can be changed into a prime (131212442330237) 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, 7941569 + ... + 18041435.

It is an arithmetic number, because the mean of its divisors is an integer number (13024799872668).

Almost surely, 2131212442330234 is an apocalyptic number.

131212442330234 is a deficient number, since it is larger than the sum of its proper divisors (77184355632454).

131212442330234 is a wasteful number, since it uses less digits than its factorization.

131212442330234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481989.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 131212442330234 its reverse (432033244212131), we get a palindrome (563245686542365).

The spelling of 131212442330234 in words is "one hundred thirty-one trillion, two hundred twelve billion, four hundred forty-two million, three hundred thirty thousand, two hundred thirty-four".

Divisors: 1 2 17 34 382103 764206 6495751 10099867 12991502 20199734 171697739 343395478 3859189480301 7718378960602 65606221165117 131212442330234