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380690490 = 23512689683
BaseRepresentation
bin10110101100001…
…110000000111010
3222112100002011210
4112230032000322
51234424043430
6101435303550
712301546545
oct2654160072
9875302153
10380690490
11185987444
12a75aabb6
1360b4055b
14387b985c
152364c2b0
hex16b0e03a

380690490 has 16 divisors (see below), whose sum is σ = 913657248. Its totient is φ = 101517456.

The previous prime is 380690489. The next prime is 380690507. The reversal of 380690490 is 94096083.

380690490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6344812 + ... + 6344871.

It is an arithmetic number, because the mean of its divisors is an integer number (57103578).

Almost surely, 2380690490 is an apocalyptic number.

380690490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

380690490 is an abundant number, since it is smaller than the sum of its proper divisors (532966758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380690490 is a wasteful number, since it uses less digits than its factorization.

380690490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12689693.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 380690490 is about 19511.2913462948. The cubic root of 380690490 is about 724.7540917896.

The spelling of 380690490 in words is "three hundred eighty million, six hundred ninety thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 12689683 25379366 38069049 63448415 76138098 126896830 190345245 380690490