Search a number
-
+
380747 = 478101
BaseRepresentation
bin1011100111101001011
3201100021202
41130331023
544140442
612054415
73144023
oct1347513
9640252
10380747
11240074
1216440b
131043c3
149ca83
1577c32
hex5cf4b

380747 has 4 divisors (see below), whose sum is σ = 388896. Its totient is φ = 372600.

The previous prime is 380729. The next prime is 380753. The reversal of 380747 is 747083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747083 = 839001.

It is a cyclic number.

It is not a de Polignac number, because 380747 - 210 = 379723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4004 + ... + 4097.

It is an arithmetic number, because the mean of its divisors is an integer number (97224).

2380747 is an apocalyptic number.

380747 is a deficient number, since it is larger than the sum of its proper divisors (8149).

380747 is an equidigital number, since it uses as much as digits as its factorization.

380747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 380747 is about 617.0469998306. The cubic root of 380747 is about 72.4789951041.

It can be divided in two parts, 3807 and 47, that multiplied together give a square (178929 = 4232).

The spelling of 380747 in words is "three hundred eighty thousand, seven hundred forty-seven".

Divisors: 1 47 8101 380747