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2430030439 = 17142942967
BaseRepresentation
bin1001000011010111…
…0101001001100111
320021100112100002101
42100311311021213
514434041433224
61041043552531
7114134626564
oct22065651147
96240470071
102430030439
111037763921
1257998b747
132c95a1745
14190a3986b
15e3509044
hex90d75267

2430030439 has 4 divisors (see below), whose sum is σ = 2572973424. Its totient is φ = 2287087456.

The previous prime is 2430030419. The next prime is 2430030461. The reversal of 2430030439 is 9340300342.

2430030439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9340300342 = 24670150171.

It is a cyclic number.

It is not a de Polignac number, because 2430030439 - 215 = 2429997671 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 (2430030409) 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, 71471467 + ... + 71471500.

It is an arithmetic number, because the mean of its divisors is an integer number (643243356).

Almost surely, 22430030439 is an apocalyptic number.

2430030439 is a deficient number, since it is larger than the sum of its proper divisors (142942985).

2430030439 is a wasteful number, since it uses less digits than its factorization.

2430030439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142942984.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 2430030439 is about 49295.3389175894. The cubic root of 2430030439 is about 1344.4270375025.

The spelling of 2430030439 in words is "two billion, four hundred thirty million, thirty thousand, four hundred thirty-nine".

Divisors: 1 17 142942967 2430030439