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47350247 = 738917389
BaseRepresentation
bin1011010010100…
…0000111100111
310022002122022212
42310220013213
544110201442
64410514035
71113320240
oct264500747
9108078285
1047350247
1124800a3a
1213a3591b
139a6b2c9
146407cc7
154254a82
hex2d281e7

47350247 has 8 divisors (see below), whose sum is σ = 54256800. Its totient is φ = 40479264.

The previous prime is 47350241. The next prime is 47350271. The reversal of 47350247 is 74205374.

47350247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47350247 - 24 = 47350231 is a prime.

It is a super-2 number, since 2×473502472 = 4484091781922018, 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 (47350241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5972 + ... + 11417.

It is an arithmetic number, because the mean of its divisors is an integer number (6782100).

Almost surely, 247350247 is an apocalyptic number.

47350247 is a deficient number, since it is larger than the sum of its proper divisors (6906553).

47350247 is a wasteful number, since it uses less digits than its factorization.

47350247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17785.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 47350247 is about 6881.1515751362. The cubic root of 47350247 is about 361.7768304877.

The spelling of 47350247 in words is "forty-seven million, three hundred fifty thousand, two hundred forty-seven".

Divisors: 1 7 389 2723 17389 121723 6764321 47350247