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47944247943 = 3173133003461
BaseRepresentation
bin101100101001101100…
…110010101010000111
311120202022120010221210
4230221230302222013
51241142211413233
634005243342503
73315050245344
oct545154625207
9146668503853
1047944247943
1119373307109
129360521a33
1346a0ba50a7
14246b6c17cb
1513a916d163
hexb29b32a87

47944247943 has 16 divisors (see below), whose sum is σ = 67902268896. Its totient is φ = 29986544640.

The previous prime is 47944247929. The next prime is 47944247947. The reversal of 47944247943 is 34974244974.

47944247943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47944247943 - 24 = 47944247927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47944247947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485768 + ... + 1517693.

It is an arithmetic number, because the mean of its divisors is an integer number (4243891806).

Almost surely, 247944247943 is an apocalyptic number.

47944247943 is a deficient number, since it is larger than the sum of its proper divisors (19958020953).

47944247943 is a wasteful number, since it uses less digits than its factorization.

47944247943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003794.

The product of its digits is 24385536, while the sum is 57.

The spelling of 47944247943 in words is "forty-seven billion, nine hundred forty-four million, two hundred forty-seven thousand, nine hundred forty-three".

Divisors: 1 3 17 51 313 939 5321 15963 3003461 9010383 51058837 153176511 940083293 2820249879 15981415981 47944247943