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47380009 = 591017951
BaseRepresentation
bin1011010010111…
…1011000101001
310022011011011011
42310233120221
544112130014
64411303521
71113503065
oct264573051
9108134134
1047380009
1124821336
1213a4aba1
139a7ba11
146414aa5
15425d7c4
hex2d2f629

47380009 has 8 divisors (see below), whose sum is σ = 48666240. Its totient is φ = 46110000.

The previous prime is 47380007. The next prime is 47380031. The reversal of 47380009 is 90008374.

It is a happy number.

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 47380009 - 21 = 47380007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47380001) 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, 1984 + ... + 9934.

It is an arithmetic number, because the mean of its divisors is an integer number (6083280).

Almost surely, 247380009 is an apocalyptic number.

It is an amenable number.

47380009 is a deficient number, since it is larger than the sum of its proper divisors (1286231).

47380009 is a wasteful number, since it uses less digits than its factorization.

47380009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 47380009 is about 6883.3138094961. The cubic root of 47380009 is about 361.8526128936.

The spelling of 47380009 in words is "forty-seven million, three hundred eighty thousand, nine".

Divisors: 1 59 101 5959 7951 469109 803051 47380009