Base | Representation |
---|---|
bin | 1001001011010… |
… | …0010001101111 |
3 | 2200102100110001 |
4 | 2102310101233 |
5 | 34323042101 |
6 | 3452525131 |
7 | 645064303 |
oct | 222642157 |
9 | 80370401 |
10 | 38487151 |
11 | 1a7a7a6a |
12 | 10a807a7 |
13 | 7c87081 |
14 | 517bd03 |
15 | 35a3901 |
hex | 24b446f |
38487151 has 16 divisors (see below), whose sum is σ = 41223168. Its totient is φ = 35870400.
The previous prime is 38487143. The next prime is 38487181. The reversal of 38487151 is 15178483.
38487151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
38487151 is a nontrivial binomial coefficient, being equal to C(8774, 2).
It is a cyclic number.
It is not a de Polignac number, because 38487151 - 23 = 38487143 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 38487151.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38487131) 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 15 ways as a sum of consecutive naturals, for example, 135856 + ... + 136138.
It is an arithmetic number, because the mean of its divisors is an integer number (2576448).
Almost surely, 238487151 is an apocalyptic number.
38487151 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
38487151 is the 8773-rd triangular number and also the 4387-th hexagonal number.
38487151 is the 2925-th centered nonagonal number.
38487151 is a deficient number, since it is larger than the sum of its proper divisors (2736017).
38487151 is a wasteful number, since it uses less digits than its factorization.
38487151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 462.
The product of its digits is 26880, while the sum is 37.
The square root of 38487151 is about 6203.8013346657. The cubic root of 38487151 is about 337.6281024455.
The spelling of 38487151 in words is "thirty-eight million, four hundred eighty-seven thousand, one hundred fifty-one".
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