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47145539133 = 3471131243839
BaseRepresentation
bin101011111010000101…
…111101011000111101
311111200122122112110000
4223322011331120331
51233023224223013
633354112304513
73256211320260
oct537205753075
9144618575400
1047145539133
1118aa3478390
129178b42139
1345a4584b24
1423d35b0cd7
15135de9d973
hexafa17d63d

47145539133 has 80 divisors (see below), whose sum is σ = 90638254080. Its totient is φ = 23701053600.

The previous prime is 47145539131. The next prime is 47145539149. The reversal of 47145539133 is 33193554174.

47145539133 is a `hidden beast` number, since 4 + 7 + 1 + 4 + 553 + 91 + 3 + 3 = 666.

It is not a de Polignac number, because 47145539133 - 21 = 47145539131 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47145539131) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 71428 + ... + 315266.

It is an arithmetic number, because the mean of its divisors is an integer number (1132978176).

Almost surely, 247145539133 is an apocalyptic number.

It is an amenable number.

47145539133 is a deficient number, since it is larger than the sum of its proper divisors (43492714947).

47145539133 is a wasteful number, since it uses less digits than its factorization.

47145539133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243900 (or 243891 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The spelling of 47145539133 in words is "forty-seven billion, one hundred forty-five million, five hundred thirty-nine thousand, one hundred thirty-three".

Divisors: 1 3 7 9 11 21 27 31 33 63 77 81 93 99 189 217 231 279 297 341 567 651 693 837 891 1023 1953 2079 2387 2511 3069 5859 6237 7161 9207 17577 21483 27621 64449 193347 243839 731517 1706873 2194551 2682229 5120619 6583653 7559009 8046687 15361857 18775603 19750959 22677027 24140061 46085571 52913063 56326809 68031081 72420183 83149099 138256713 158739189 168980427 204093243 217260549 249447297 476217567 506941281 582043693 612279729 748341891 1428652701 1520823843 1746131079 2245025673 4285958103 5238393237 6735077019 15715179711 47145539133