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47490585 = 353166039
BaseRepresentation
bin1011010100101…
…0011000011001
310022100202211120
42311022120121
544124144320
64413515453
71114443342
oct265123031
9108322746
1047490585
112489741a
1213aa2b89
139aba14c
1464430c9
154281440
hex2d4a619

47490585 has 8 divisors (see below), whose sum is σ = 75984960. Its totient is φ = 25328304.

The previous prime is 47490577. The next prime is 47490589. The reversal of 47490585 is 58509474.

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

It is not a de Polignac number, because 47490585 - 23 = 47490577 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (47490589) 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, 1583005 + ... + 1583034.

It is an arithmetic number, because the mean of its divisors is an integer number (9498120).

Almost surely, 247490585 is an apocalyptic number.

It is an amenable number.

47490585 is a deficient number, since it is larger than the sum of its proper divisors (28494375).

47490585 is a wasteful number, since it uses less digits than its factorization.

47490585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166047.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 47490585 is about 6891.3413063061. The cubic root of 47490585 is about 362.1338927601.

The spelling of 47490585 in words is "forty-seven million, four hundred ninety thousand, five hundred eighty-five".

Divisors: 1 3 5 15 3166039 9498117 15830195 47490585