Base | Representation |
---|---|
bin | 1110001111001111101010… |
… | …10011010100001111011111 |
3 | 11002212012220221101022212102 |
4 | 13013213311103110033133 |
5 | 13100441122304231421 |
6 | 150331402012555315 |
7 | 6411040155460112 |
oct | 707476523241737 |
9 | 132765827338772 |
10 | 31310132102111 |
11 | 9a81609355555 |
12 | 3618143a82b3b |
13 | 14616c06c7385 |
14 | 7a35c0444579 |
15 | 3946ad4a360b |
hex | 1c79f54d43df |
31310132102111 has 32 divisors (see below), whose sum is σ = 32955939072000. Its totient is φ = 29705364299520.
The previous prime is 31310132102101. The next prime is 31310132102233. The reversal of 31310132102111 is 11120123101313.
It is not a de Polignac number, because 31310132102111 - 242 = 26912085591007 is a prime.
It is a super-3 number, since 3×313101321021113 (a number of 41 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31310132102101) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622603610 + ... + 622653896.
It is an arithmetic number, because the mean of its divisors is an integer number (1029873096000).
Almost surely, 231310132102111 is an apocalyptic number.
31310132102111 is a deficient number, since it is larger than the sum of its proper divisors (1645806969889).
31310132102111 is a wasteful number, since it uses less digits than its factorization.
31310132102111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51479.
The product of its (nonzero) digits is 108, while the sum is 20.
Adding to 31310132102111 its reverse (11120123101313), we get a palindrome (42430255203424).
The spelling of 31310132102111 in words is "thirty-one trillion, three hundred ten billion, one hundred thirty-two million, one hundred two thousand, one hundred eleven".
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