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47936889 = 327111317313
BaseRepresentation
bin1011011011011…
…1010101111001
310100012110001100
42312313111321
544232440024
64431242013
71121312460
oct266672571
9110173040
1047936889
1125071770
1214079309
139c15330
14651b9d7
15431d7c9
hex2db7579

47936889 has 96 divisors (see below), whose sum is σ = 98751744. Its totient is φ = 21565440.

The previous prime is 47936887. The next prime is 47936893. The reversal of 47936889 is 98863974.

It is not a de Polignac number, because 47936889 - 21 = 47936887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47936887) 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 95 ways as a sum of consecutive naturals, for example, 152997 + ... + 153309.

It is an arithmetic number, because the mean of its divisors is an integer number (1028664).

Almost surely, 247936889 is an apocalyptic number.

It is an amenable number.

47936889 is an abundant number, since it is smaller than the sum of its proper divisors (50814855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47936889 is a wasteful number, since it uses less digits than its factorization.

47936889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 364 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 47936889 is about 6923.6470880599. The cubic root of 47936889 is about 363.2647705171.

The spelling of 47936889 in words is "forty-seven million, nine hundred thirty-six thousand, eight hundred eighty-nine".

Divisors: 1 3 7 9 11 13 17 21 33 39 51 63 77 91 99 117 119 143 153 187 221 231 273 313 357 429 561 663 693 819 939 1001 1071 1287 1309 1547 1683 1989 2191 2431 2817 3003 3443 3927 4069 4641 5321 6573 7293 9009 10329 11781 12207 13923 15963 17017 19719 21879 24101 28483 30987 36621 37247 44759 47889 51051 58531 69173 72303 85449 111741 134277 153153 175593 207519 216909 256347 313313 335223 402831 409717 484211 526779 622557 760903 939939 1229151 1452633 2282709 2819817 3687453 4357899 5326321 6848127 15978963 47936889