Base | Representation |
---|---|
bin | 11101000110000111… |
… | …101111010110010101 |
3 | 2222122020211122201220 |
4 | 131012013233112111 |
5 | 1002440222031031 |
6 | 22204011240553 |
7 | 2154120601506 |
oct | 350607572625 |
9 | 88566748656 |
10 | 31241205141 |
11 | 12281933903 |
12 | 607a749159 |
13 | 2c3b585803 |
14 | 1725222bad |
15 | c2caa3596 |
hex | 7461ef595 |
31241205141 has 32 divisors (see below), whose sum is σ = 45012467712. Its totient is φ = 19217278080.
The previous prime is 31241205101. The next prime is 31241205157. The reversal of 31241205141 is 14150214213.
It is not a de Polignac number, because 31241205141 - 29 = 31241204629 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31241205101) 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, 646176 + ... + 692838.
It is an arithmetic number, because the mean of its divisors is an integer number (1406639616).
Almost surely, 231241205141 is an apocalyptic number.
31241205141 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
31241205141 is a deficient number, since it is larger than the sum of its proper divisors (13771262571).
31241205141 is a wasteful number, since it uses less digits than its factorization.
31241205141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47033.
The product of its (nonzero) digits is 960, while the sum is 24.
Adding to 31241205141 its reverse (14150214213), we get a palindrome (45391419354).
The spelling of 31241205141 in words is "thirty-one billion, two hundred forty-one million, two hundred five thousand, one hundred forty-one".
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