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47693913 = 374321397
BaseRepresentation
bin1011010111110…
…0000001011001
310022202002202020
42311330001121
544202201123
64422125053
71116251211
oct265740131
9108662666
1047693913
1124a16163
1213b80789
139b5b867
146497241
1542c17e3
hex2d7c059

47693913 has 8 divisors (see below), whose sum is σ = 63680448. Its totient is φ = 31751664.

The previous prime is 47693909. The next prime is 47693929. The reversal of 47693913 is 31939674.

47693913 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 47693913 - 22 = 47693909 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47693983) 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, 8470 + ... + 12927.

It is an arithmetic number, because the mean of its divisors is an integer number (7960056).

Almost surely, 247693913 is an apocalyptic number.

It is an amenable number.

47693913 is a deficient number, since it is larger than the sum of its proper divisors (15986535).

47693913 is a wasteful number, since it uses less digits than its factorization.

47693913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22143.

The product of its digits is 122472, while the sum is 42.

The square root of 47693913 is about 6906.0779752331. The cubic root of 47693913 is about 362.6499748834.

The spelling of 47693913 in words is "forty-seven million, six hundred ninety-three thousand, nine hundred thirteen".

Divisors: 1 3 743 2229 21397 64191 15897971 47693913