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47628505 = 525137951
BaseRepresentation
bin1011010110110…
…0000011011001
310022121210000201
42311230003121
544143103010
64420502201
71115556421
oct265540331
9108553021
1047628505
1124981001
1213b4a961
139b37b62
14647b481
1542ac23a
hex2d6c0d9

47628505 has 8 divisors (see below), whose sum is σ = 57383424. Its totient is φ = 37950000.

The previous prime is 47628479. The next prime is 47628523. The reversal of 47628505 is 50582674.

It is a happy number.

47628505 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 47628505 - 219 = 47104217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 17721 + ... + 20230.

It is an arithmetic number, because the mean of its divisors is an integer number (7172928).

Almost surely, 247628505 is an apocalyptic number.

It is an amenable number.

47628505 is a deficient number, since it is larger than the sum of its proper divisors (9754919).

47628505 is a wasteful number, since it uses less digits than its factorization.

47628505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38207.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 47628505 is about 6901.3408117554. The cubic root of 47628505 is about 362.4841182103.

The spelling of 47628505 in words is "forty-seven million, six hundred twenty-eight thousand, five hundred five".

Divisors: 1 5 251 1255 37951 189755 9525701 47628505