Search a number
-
+
9141439 = 22340993
BaseRepresentation
bin100010110111…
…110010111111
3122012102200211
4202313302333
54320011224
6523533251
7140462266
oct42676277
918172624
109141439
11518410a
12308a227
131b80b48
1412dd5dd
15c08894
hex8b7cbf

9141439 has 4 divisors (see below), whose sum is σ = 9182656. Its totient is φ = 9100224.

The previous prime is 9141437. The next prime is 9141443. The reversal of 9141439 is 9341419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9341419 = 10339043.

It is a cyclic number.

It is not a de Polignac number, because 9141439 - 21 = 9141437 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9141439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9141437) 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, 20274 + ... + 20719.

It is an arithmetic number, because the mean of its divisors is an integer number (2295664).

Almost surely, 29141439 is an apocalyptic number.

9141439 is a deficient number, since it is larger than the sum of its proper divisors (41217).

9141439 is a wasteful number, since it uses less digits than its factorization.

9141439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41216.

The product of its digits is 3888, while the sum is 31.

The square root of 9141439 is about 3023.4812716470. The cubic root of 9141439 is about 209.0923715828.

The spelling of 9141439 in words is "nine million, one hundred forty-one thousand, four hundred thirty-nine".

Divisors: 1 223 40993 9141439