Base | Representation |
---|---|
bin | 11100111000011001… |
… | …100111111000101101 |
3 | 2222001012200122022020 |
4 | 130320121213320231 |
5 | 1002002304342031 |
6 | 22125105340353 |
7 | 2145324153054 |
oct | 347031477055 |
9 | 88035618266 |
10 | 31011012141 |
11 | 121739a945a |
12 | 60156376b9 |
13 | 2c02989735 |
14 | 170282139b |
15 | c17783096 |
hex | 738667e2d |
31011012141 has 8 divisors (see below), whose sum is σ = 41432921664. Its totient is φ = 20631555360.
The previous prime is 31011012139. The next prime is 31011012167. The reversal of 31011012141 is 14121011013.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31011012141 - 21 = 31011012139 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 31011012141.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31011012121) 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, 10611480 + ... + 10614401.
It is an arithmetic number, because the mean of its divisors is an integer number (5179115208).
Almost surely, 231011012141 is an apocalyptic number.
It is an amenable number.
31011012141 is a deficient number, since it is larger than the sum of its proper divisors (10421909523).
31011012141 is a wasteful number, since it uses less digits than its factorization.
31011012141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21226371.
The product of its (nonzero) digits is 24, while the sum is 15.
Adding to 31011012141 its reverse (14121011013), we get a palindrome (45132023154).
The spelling of 31011012141 in words is "thirty-one billion, eleven million, twelve thousand, one hundred forty-one".
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