Base | Representation |
---|---|
bin | 10110101001111… |
… | …011011010000110 |
3 | 222111012120110001 |
4 | 112221323122012 |
5 | 1234300334430 |
6 | 101414351514 |
7 | 12263466040 |
oct | 2651733206 |
9 | 874176401 |
10 | 380089990 |
11 | 185607265 |
12 | a735b59a |
13 | 60990127 |
14 | 386a0a90 |
15 | 2357e3ca |
hex | 16a7b686 |
380089990 has 32 divisors (see below), whose sum is σ = 782576640. Its totient is φ = 130203744.
The previous prime is 380089981. The next prime is 380089991. The reversal of 380089990 is 99980083.
It is a self number, because there is not a number n which added to its sum of digits gives 380089990.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380089991) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141399 + ... + 144061.
It is an arithmetic number, because the mean of its divisors is an integer number (24455520).
Almost surely, 2380089990 is an apocalyptic number.
380089990 is an abundant number, since it is smaller than the sum of its proper divisors (402486650).
380089990 is a wasteful number, since it uses less digits than its factorization.
380089990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4716.
The product of its (nonzero) digits is 139968, while the sum is 46.
The square root of 380089990 is about 19495.8967477775. The cubic root of 380089990 is about 724.3728162917.
The spelling of 380089990 in words is "three hundred eighty million, eighty-nine thousand, nine hundred ninety".
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