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380256413 = 1133365101
BaseRepresentation
bin10110101010100…
…100000010011101
3222111112000201212
4112222210002131
51234321201123
6101422114205
712265061165
oct2652440235
9874460655
10380256413
111857102a9
12a741b965
1360a1aac4
14387055a5
15235b3878
hex16aa409d

380256413 has 4 divisors (see below), whose sum is σ = 383621628. Its totient is φ = 376891200.

The previous prime is 380256389. The next prime is 380256421. The reversal of 380256413 is 314652083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11539609 + 368716804 = 3397^2 + 19202^2 .

It is a cyclic number.

It is not a de Polignac number, because 380256413 - 28 = 380256157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 380256413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380256433) 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 3 ways as a sum of consecutive naturals, for example, 1682438 + ... + 1682663.

It is an arithmetic number, because the mean of its divisors is an integer number (95905407).

Almost surely, 2380256413 is an apocalyptic number.

It is an amenable number.

380256413 is a deficient number, since it is larger than the sum of its proper divisors (3365215).

380256413 is a wasteful number, since it uses less digits than its factorization.

380256413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365214.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 380256413 is about 19500.1644352041. The cubic root of 380256413 is about 724.4785234576.

The spelling of 380256413 in words is "three hundred eighty million, two hundred fifty-six thousand, four hundred thirteen".

Divisors: 1 113 3365101 380256413