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47968569 = 3211484531
BaseRepresentation
bin1011011011111…
…1000100111001
310100021001111200
42312333010321
544234443234
64432044413
71121504025
oct266770471
9110231450
1047968569
1125093550
1214093709
139c2688c
146529385
154327d99
hex2dbf139

47968569 has 12 divisors (see below), whose sum is σ = 75586992. Its totient is φ = 29071800.

The previous prime is 47968561. The next prime is 47968573. The reversal of 47968569 is 96586974.

47968569 is a `hidden beast` number, since 4 + 79 + 6 + 8 + 569 = 666.

It is not a de Polignac number, because 47968569 - 23 = 47968561 is a prime.

It is a super-2 number, since 2×479685692 = 4601967223815522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47968561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242167 + ... + 242364.

It is an arithmetic number, because the mean of its divisors is an integer number (6298916).

Almost surely, 247968569 is an apocalyptic number.

It is an amenable number.

47968569 is a deficient number, since it is larger than the sum of its proper divisors (27618423).

47968569 is a wasteful number, since it uses less digits than its factorization.

47968569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484548 (or 484545 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 47968569 is about 6925.9345217812. The cubic root of 47968569 is about 363.3447763606.

The spelling of 47968569 in words is "forty-seven million, nine hundred sixty-eight thousand, five hundred sixty-nine".

Divisors: 1 3 9 11 33 99 484531 1453593 4360779 5329841 15989523 47968569