Base | Representation |
---|---|
bin | 1001000111001… |
… | …0100000101000 |
3 | 2122220122220220 |
4 | 2101302200220 |
5 | 34240432033 |
6 | 3443050040 |
7 | 642563031 |
oct | 221624050 |
9 | 78818826 |
10 | 38217768 |
11 | 1a633636 |
12 | 10970920 |
13 | 7bc1584 |
14 | 510ba88 |
15 | 354dbb3 |
hex | 2472828 |
38217768 has 64 divisors (see below), whose sum is σ = 103368960. Its totient is φ = 11728896.
The previous prime is 38217749. The next prime is 38217787. The reversal of 38217768 is 86771283.
It is an interprime number because it is at equal distance from previous prime (38217749) and next prime (38217787).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18180 + ... + 20172.
It is an arithmetic number, because the mean of its divisors is an integer number (1615140).
Almost surely, 238217768 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 38217768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51684480).
38217768 is an abundant number, since it is smaller than the sum of its proper divisors (65151192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38217768 is a wasteful number, since it uses less digits than its factorization.
38217768 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2066 (or 2062 counting only the distinct ones).
The product of its digits is 112896, while the sum is 42.
The square root of 38217768 is about 6182.0520864839. The cubic root of 38217768 is about 336.8385376507.
The spelling of 38217768 in words is "thirty-eight million, two hundred seventeen thousand, seven hundred sixty-eight".
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