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47117069 = 173272353
BaseRepresentation
bin1011001110111…
…1001100001101
310021122210110122
42303233030031
544030221234
64401514325
71111326356
oct263571415
9107583418
1047117069
112466182a
12139429a5
1399b912c
146386d2d
15420a92e
hex2cef30d

47117069 has 4 divisors (see below), whose sum is σ = 47389596. Its totient is φ = 46844544.

The previous prime is 47117033. The next prime is 47117107. The reversal of 47117069 is 96071174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96071174 = 248035587.

It can be written as a sum of positive squares in 2 ways, for example, as 29560969 + 17556100 = 5437^2 + 4190^2 .

It is a cyclic number.

It is not a de Polignac number, because 47117069 - 28 = 47116813 is a prime.

It is a super-2 number, since 2×471170692 = 4440036382301522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47117029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136004 + ... + 136349.

It is an arithmetic number, because the mean of its divisors is an integer number (11847399).

Almost surely, 247117069 is an apocalyptic number.

It is an amenable number.

47117069 is a deficient number, since it is larger than the sum of its proper divisors (272527).

47117069 is a wasteful number, since it uses less digits than its factorization.

47117069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272526.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 47117069 is about 6864.1874245973. The cubic root of 47117069 is about 361.1819919630.

The spelling of 47117069 in words is "forty-seven million, one hundred seventeen thousand, sixty-nine".

Divisors: 1 173 272353 47117069