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3005140243 = 71972179217
BaseRepresentation
bin1011001100011110…
…1100110100010011
321202102200221102111
42303013230310103
522123303441433
61214110330151
7134320161550
oct26307546423
97672627374
103005140243
111302361386
126ba4b9957
1338b7940c1
14207183a27
15128c5bdcd
hexb31ecd13

3005140243 has 8 divisors (see below), whose sum is σ = 3451881312. Its totient is φ = 2562758016.

The previous prime is 3005140211. The next prime is 3005140253. The reversal of 3005140243 is 3420415003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3005140243 - 25 = 3005140211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3005140253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088230 + ... + 1090987.

It is an arithmetic number, because the mean of its divisors is an integer number (431485164).

Almost surely, 23005140243 is an apocalyptic number.

3005140243 is a deficient number, since it is larger than the sum of its proper divisors (446741069).

3005140243 is a wasteful number, since it uses less digits than its factorization.

3005140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179421.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3005140243 is about 54819.1594517829. The cubic root of 3005140243 is about 1443.0728239901.

Adding to 3005140243 its reverse (3420415003), we get a palindrome (6425555246).

The spelling of 3005140243 in words is "three billion, five million, one hundred forty thousand, two hundred forty-three".

Divisors: 1 7 197 1379 2179217 15254519 429305749 3005140243