Base | Representation |
---|---|
bin | 1001001011000… |
… | …1010010101011 |
3 | 2200101201200011 |
4 | 2102301102223 |
5 | 34322144143 |
6 | 3452352351 |
7 | 645013534 |
oct | 222612253 |
9 | 80351604 |
10 | 38474923 |
11 | 1a799863 |
12 | 10a756b7 |
13 | 7c81636 |
14 | 517768b |
15 | 359ee9d |
hex | 24b14ab |
38474923 has 4 divisors (see below), whose sum is σ = 38492280. Its totient is φ = 38457568.
The previous prime is 38474921. The next prime is 38474983. The reversal of 38474923 is 32947483.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32947483 = 127 ⋅259429.
It is a cyclic number.
It is not a de Polignac number, because 38474923 - 21 = 38474921 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38474921) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4765 + ... + 9982.
It is an arithmetic number, because the mean of its divisors is an integer number (9623070).
Almost surely, 238474923 is an apocalyptic number.
38474923 is a deficient number, since it is larger than the sum of its proper divisors (17357).
38474923 is a wasteful number, since it uses less digits than its factorization.
38474923 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17356.
The product of its digits is 145152, while the sum is 40.
The square root of 38474923 is about 6202.8157315851. The cubic root of 38474923 is about 337.5923419935.
The spelling of 38474923 in words is "thirty-eight million, four hundred seventy-four thousand, nine hundred twenty-three".
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