Search a number
-
+
380429 = 754347
BaseRepresentation
bin1011100111000001101
3201022211222
41130320031
544133204
612053125
73143060
oct1347015
9638758
10380429
1123a905
121641a5
1310420a
149c8d7
1577abe
hex5ce0d

380429 has 4 divisors (see below), whose sum is σ = 434784. Its totient is φ = 326076.

The previous prime is 380423. The next prime is 380441. The reversal of 380429 is 924083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380429 is a prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 380398 and 380407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380423) 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, 27167 + ... + 27180.

It is an arithmetic number, because the mean of its divisors is an integer number (108696).

2380429 is an apocalyptic number.

It is an amenable number.

380429 is a deficient number, since it is larger than the sum of its proper divisors (54355).

380429 is an equidigital number, since it uses as much as digits as its factorization.

380429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54354.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 380429 is about 616.7892670921. The cubic root of 380429 is about 72.4588113249.

It can be divided in two parts, 38042 and 9, that multiplied together give a triangular number (342378 = T827).

The spelling of 380429 in words is "three hundred eighty thousand, four hundred twenty-nine".

Divisors: 1 7 54347 380429