Search a number
-
+
1384331 = 13106487
BaseRepresentation
bin101010001111110001011
32121022221112
411101332023
5323244311
645400535
714523644
oct5217613
92538845
101384331
11866083
1256914b
13396140
142806cb
151c528b
hex151f8b

1384331 has 4 divisors (see below), whose sum is σ = 1490832. Its totient is φ = 1277832.

The previous prime is 1384309. The next prime is 1384337. The reversal of 1384331 is 1334831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1334831 = 1677993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1384331 is a prime.

It is a super-2 number, since 2×13843312 = 3832744635122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1384297 and 1384306.

It is not an unprimeable number, because it can be changed into a prime (1384337) 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, 53231 + ... + 53256.

It is an arithmetic number, because the mean of its divisors is an integer number (372708).

21384331 is an apocalyptic number.

1384331 is a deficient number, since it is larger than the sum of its proper divisors (106501).

1384331 is a wasteful number, since it uses less digits than its factorization.

1384331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106500.

The product of its digits is 864, while the sum is 23.

The square root of 1384331 is about 1176.5759643984. The cubic root of 1384331 is about 111.4499765554.

The spelling of 1384331 in words is "one million, three hundred eighty-four thousand, three hundred thirty-one".

Divisors: 1 13 106487 1384331