Base | Representation |
---|---|
bin | 111011001101… |
… | …1011001010001 |
3 | 2011102021000021 |
4 | 1312123121101 |
5 | 30421421301 |
6 | 3025223441 |
7 | 524610535 |
oct | 166333121 |
9 | 64367007 |
10 | 31045201 |
11 | 165847a0 |
12 | a491b81 |
13 | 657c955 |
14 | 41a1bc5 |
15 | 2ad38a1 |
hex | 1d9b651 |
31045201 has 8 divisors (see below), whose sum is σ = 34019424. Its totient is φ = 28096320.
The previous prime is 31045199. The next prime is 31045211. The reversal of 31045201 is 10254013.
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 31045201 - 21 = 31045199 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31045211) 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, 3720 + ... + 8713.
It is an arithmetic number, because the mean of its divisors is an integer number (4252428).
Almost surely, 231045201 is an apocalyptic number.
It is an amenable number.
31045201 is a deficient number, since it is larger than the sum of its proper divisors (2974223).
31045201 is a wasteful number, since it uses less digits than its factorization.
31045201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12671.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 31045201 is about 5571.8220538707. The cubic root of 31045201 is about 314.2906723244.
Adding to 31045201 its reverse (10254013), we get a palindrome (41299214).
The spelling of 31045201 in words is "thirty-one million, forty-five thousand, two hundred one".
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