Base | Representation |
---|---|
bin | 100011110101000101… |
… | …000111110000111001 |
3 | 10200022010220122001021 |
4 | 203311011013300321 |
5 | 1112242200430214 |
6 | 25401253422441 |
7 | 2531234226052 |
oct | 436505076071 |
9 | 120263818037 |
10 | 38471498809 |
11 | 15352181517 |
12 | 755803aa21 |
13 | 38214c15a3 |
14 | 1c0d5a9729 |
15 | 100270c924 |
hex | 8f5147c39 |
38471498809 has 8 divisors (see below), whose sum is σ = 39006281192. Its totient is φ = 37936926720.
The previous prime is 38471498801. The next prime is 38471498929. The reversal of 38471498809 is 90889417483.
38471498809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 1253372409 + 37218126400 = 35403^2 + 192920^2 .
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 38471498809 - 23 = 38471498801 is a prime.
It is a super-2 number, since 2×384714988092 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38471498801) 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, 335617 + ... + 435409.
It is an arithmetic number, because the mean of its divisors is an integer number (4875785149).
Almost surely, 238471498809 is an apocalyptic number.
It is an amenable number.
38471498809 is a deficient number, since it is larger than the sum of its proper divisors (534782383).
38471498809 is an equidigital number, since it uses as much as digits as its factorization.
38471498809 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 105147.
The product of its (nonzero) digits is 13934592, while the sum is 61.
The spelling of 38471498809 in words is "thirty-eight billion, four hundred seventy-one million, four hundred ninety-eight thousand, eight hundred nine".
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