Base | Representation |
---|---|
bin | 11101001001101011… |
… | …110110101011111111 |
3 | 2222210102100202101121 |
4 | 131021223312223333 |
5 | 1003101024112111 |
6 | 22213545051411 |
7 | 2155445100343 |
oct | 351153665377 |
9 | 88712322347 |
10 | 31301004031 |
11 | 12302667680 |
12 | 6096786b67 |
13 | 2c4aa9207b |
14 | 172d14b623 |
15 | c32e66871 |
hex | 749af6aff |
31301004031 has 8 divisors (see below), whose sum is σ = 34484635728. Its totient is φ = 28173720000.
The previous prime is 31301004013. The next prime is 31301004047. The reversal of 31301004031 is 13040010313.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31301004031 - 225 = 31267449599 is a prime.
It is a super-2 number, since 2×313010040312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31301003996 and 31301004014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31301004001) 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, 14085750 + ... + 14087971.
It is an arithmetic number, because the mean of its divisors is an integer number (4310579466).
Almost surely, 231301004031 is an apocalyptic number.
31301004031 is a deficient number, since it is larger than the sum of its proper divisors (3183631697).
31301004031 is a wasteful number, since it uses less digits than its factorization.
31301004031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28173833.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 31301004031 its reverse (13040010313), we get a palindrome (44341014344).
The spelling of 31301004031 in words is "thirty-one billion, three hundred one million, four thousand, thirty-one".
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