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47480009 = 413972917
BaseRepresentation
bin1011010100011…
…1110011001001
310022100020022212
42311013303021
544123330014
64413354505
71114400453
oct265076311
9108306285
1047480009
112488a485
1213a98a35
139ab53a5
14643d2d3
15427d23e
hex2d47cc9

47480009 has 8 divisors (see below), whose sum is σ = 48777288. Its totient is φ = 46189440.

The previous prime is 47479973. The next prime is 47480039. The reversal of 47480009 is 90008474.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13897984 + 33582025 = 3728^2 + 5795^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47480009 - 28 = 47479753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47480039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14819 + ... + 17735.

It is an arithmetic number, because the mean of its divisors is an integer number (6097161).

Almost surely, 247480009 is an apocalyptic number.

It is an amenable number.

47480009 is a deficient number, since it is larger than the sum of its proper divisors (1297279).

47480009 is a wasteful number, since it uses less digits than its factorization.

47480009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 47480009 is about 6890.5739238470. The cubic root of 47480009 is about 362.1070087480.

The spelling of 47480009 in words is "forty-seven million, four hundred eighty thousand, nine".

Divisors: 1 41 397 2917 16277 119597 1158049 47480009