Base | Representation |
---|---|
bin | 1001001010011… |
… | …0100100011111 |
3 | 2200022111102122 |
4 | 2102212210133 |
5 | 34314243012 |
6 | 3451413155 |
7 | 644441516 |
oct | 222464437 |
9 | 80274378 |
10 | 38431007 |
11 | 1a76986a |
12 | 10a541bb |
13 | 7c67654 |
14 | 516567d |
15 | 3591e72 |
hex | 24a691f |
38431007 has 8 divisors (see below), whose sum is σ = 39916800. Its totient is φ = 36973144.
The previous prime is 38430983. The next prime is 38431013. The reversal of 38431007 is 70013483.
38431007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 38431007 - 28 = 38430751 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38431087) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4157 + ... + 9702.
It is an arithmetic number, because the mean of its divisors is an integer number (4989600).
Almost surely, 238431007 is an apocalyptic number.
38431007 is a deficient number, since it is larger than the sum of its proper divisors (1485793).
38431007 is a wasteful number, since it uses less digits than its factorization.
38431007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13965.
The product of its (nonzero) digits is 2016, while the sum is 26.
The square root of 38431007 is about 6199.2747156421. The cubic root of 38431007 is about 337.4638483454.
The spelling of 38431007 in words is "thirty-eight million, four hundred thirty-one thousand, seven".
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