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47028639147 = 375094399723
BaseRepresentation
bin101011110011001000…
…000001010110101011
311111101111200101210220
4223303020001112223
51232303312423042
633334334541123
73253261560060
oct536310012653
9144344611726
1047028639147
1118a43493726
1291459677a3
1345862a4c39
1423c1c60c67
151353aab8ec
hexaf32015ab

47028639147 has 16 divisors (see below), whose sum is σ = 71803495680. Its totient is φ = 26820705312.

The previous prime is 47028639131. The next prime is 47028639157. The reversal of 47028639147 is 74193682074.

It is not a de Polignac number, because 47028639147 - 24 = 47028639131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47028639147.

It is not an unprimeable number, because it can be changed into a prime (47028639157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2189173 + ... + 2210550.

It is an arithmetic number, because the mean of its divisors is an integer number (4487718480).

Almost surely, 247028639147 is an apocalyptic number.

47028639147 is a deficient number, since it is larger than the sum of its proper divisors (24774856533).

47028639147 is a wasteful number, since it uses less digits than its factorization.

47028639147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400242.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 47028639147 in words is "forty-seven billion, twenty-eight million, six hundred thirty-nine thousand, one hundred forty-seven".

Divisors: 1 3 7 21 509 1527 3563 10689 4399723 13199169 30798061 92394183 2239459007 6718377021 15676213049 47028639147