Base | Representation |
---|---|
bin | 11101110101011001111010… |
… | …010100111100000101010011 |
3 | 122012120212110201001002100022 |
4 | 131311121322110330011103 |
5 | 114144244321104432011 |
6 | 1143022320452214055 |
7 | 36431563654566413 |
oct | 3565317224740523 |
9 | 565525421032308 |
10 | 131213303202131 |
11 | 38899281a2aa47 |
12 | 1287202590a32b |
13 | 582a490cc1017 |
14 | 2458a8741a643 |
15 | 102825c1288db |
hex | 77567a53c153 |
131213303202131 has 16 divisors (see below), whose sum is σ = 134628705866880. Its totient is φ = 127835755407360.
The previous prime is 131213303202103. The next prime is 131213303202143. The reversal of 131213303202131 is 131202303312131.
It is a cyclic number.
It is not a de Polignac number, because 131213303202131 - 222 = 131213299007827 is a prime.
It is a super-2 number, since 2×1312133032021312 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 131213303202131.
It is not an unprimeable number, because it can be changed into a prime (131213303202181) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10200890 + ... + 19143791.
It is an arithmetic number, because the mean of its divisors is an integer number (8414294116680).
Almost surely, 2131213303202131 is an apocalyptic number.
131213303202131 is a deficient number, since it is larger than the sum of its proper divisors (3415402664749).
131213303202131 is a wasteful number, since it uses less digits than its factorization.
131213303202131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29345326.
The product of its (nonzero) digits is 1944, while the sum is 26.
Adding to 131213303202131 its reverse (131202303312131), we get a palindrome (262415606514262).
The spelling of 131213303202131 in words is "one hundred thirty-one trillion, two hundred thirteen billion, three hundred three million, two hundred two thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •