Base | Representation |
---|---|
bin | 1001010101000… |
… | …1011110011101 |
3 | 2201122001200200 |
4 | 2111101132131 |
5 | 40004143122 |
6 | 3514414113 |
7 | 653415441 |
oct | 225213635 |
9 | 81561620 |
10 | 39131037 |
11 | 200a7800 |
12 | 11131339 |
13 | 815117a |
14 | 52a8821 |
15 | 367e5ac |
hex | 255179d |
39131037 has 18 divisors (see below), whose sum is σ = 62129886. Its totient is φ = 23715120.
The previous prime is 39131033. The next prime is 39131047. The reversal of 39131037 is 73013193.
It can be written as a sum of positive squares in only one way, i.e., 36072036 + 3059001 = 6006^2 + 1749^2 .
It is not a de Polignac number, because 39131037 - 22 = 39131033 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 39131037.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (39131033) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16878 + ... + 19055.
Almost surely, 239131037 is an apocalyptic number.
It is an amenable number.
39131037 is a deficient number, since it is larger than the sum of its proper divisors (22998849).
39131037 is a wasteful number, since it uses less digits than its factorization.
39131037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35961 (or 35947 counting only the distinct ones).
The product of its (nonzero) digits is 1701, while the sum is 27.
The square root of 39131037 is about 6255.4805570795. The cubic root of 39131037 is about 339.5005267058.
It can be divided in two parts, 3913 and 1037, that added together give a triangular number (4950 = T99).
The spelling of 39131037 in words is "thirty-nine million, one hundred thirty-one thousand, thirty-seven".
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