Search a number
-
+
380045213 = 3117776899
BaseRepresentation
bin10110101001110…
…000011110011101
3222111010022000122
4112221300132131
51234242421323
6101413404325
712263221352
oct2651603635
9874108018
10380045213
11185586659
12a73396a5
1360975932
143868c629
1523570ec8
hex16a7079d

380045213 has 8 divisors (see below), whose sum is σ = 392582400. Its totient is φ = 367525440.

The previous prime is 380045161. The next prime is 380045233. The reversal of 380045213 is 312540083.

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 380045213 - 28 = 380044957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380045233) 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, 51638 + ... + 58536.

It is an arithmetic number, because the mean of its divisors is an integer number (49072800).

Almost surely, 2380045213 is an apocalyptic number.

It is an amenable number.

380045213 is a deficient number, since it is larger than the sum of its proper divisors (12537187).

380045213 is a wasteful number, since it uses less digits than its factorization.

380045213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 380045213 is about 19494.7483441054. The cubic root of 380045213 is about 724.3443699446.

Adding to 380045213 its reverse (312540083), we get a palindrome (692585296).

The spelling of 380045213 in words is "three hundred eighty million, forty-five thousand, two hundred thirteen".

Divisors: 1 31 1777 6899 55087 213869 12259523 380045213