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47074197387 = 376773458317
BaseRepresentation
bin101011110101110101…
…110011111110001011
311111111200101222222010
4223311311303332023
51232401443304022
633343043231003
73254354034660
oct536565637613
9144450358863
1047074197387
1118a67180268
129159078463
134592866689
1423c7d1da67
151357aaa50c
hexaf5d73f8b

47074197387 has 32 divisors (see below), whose sum is σ = 73800197632. Its totient is φ = 26135011584.

The previous prime is 47074197343. The next prime is 47074197433. The reversal of 47074197387 is 78379147074.

It is a happy number.

It is not a de Polignac number, because 47074197387 - 26 = 47074197323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47074196387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126448 + ... + 331869.

It is an arithmetic number, because the mean of its divisors is an integer number (2306256176).

Almost surely, 247074197387 is an apocalyptic number.

47074197387 is a deficient number, since it is larger than the sum of its proper divisors (26726000245).

47074197387 is a wasteful number, since it uses less digits than its factorization.

47074197387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458467.

The product of its (nonzero) digits is 8297856, while the sum is 57.

The spelling of 47074197387 in words is "forty-seven billion, seventy-four million, one hundred ninety-seven thousand, three hundred eighty-seven".

Divisors: 1 3 7 21 67 73 201 219 469 511 1407 1533 4891 14673 34237 102711 458317 1374951 3208219 9624657 30707239 33457141 92121717 100371423 214950673 234199987 644852019 702599961 2241628447 6724885341 15691399129 47074197387