Search a number
-
+
49932141987 = 371319371511723
BaseRepresentation
bin101110100000001100…
…000000010110100011
311202212212010121221010
4232200030000112203
51304230112020422
634534415032003
73415236126660
oct564014002643
9152785117833
1049932141987
111a1a3435352
12981620b603
1349299a1160
1425b9708a67
15147393db0c
hexba03005a3

49932141987 has 128 divisors (see below), whose sum is σ = 89222103040. Its totient is φ = 24102489600.

The previous prime is 49932141983. The next prime is 49932141989. The reversal of 49932141987 is 78914123994.

It is not a de Polignac number, because 49932141987 - 22 = 49932141983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (49932141983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28978908 + ... + 28980630.

It is an arithmetic number, because the mean of its divisors is an integer number (697047680).

Almost surely, 249932141987 is an apocalyptic number.

49932141987 is a deficient number, since it is larger than the sum of its proper divisors (39289961053).

49932141987 is a wasteful number, since it uses less digits than its factorization.

49932141987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its digits is 3919104, while the sum is 57.

The spelling of 49932141987 in words is "forty-nine billion, nine hundred thirty-two million, one hundred forty-one thousand, nine hundred eighty-seven".

Divisors: 1 3 7 13 19 21 37 39 57 91 111 133 151 247 259 273 399 453 481 703 741 777 1057 1443 1723 1729 1963 2109 2869 3171 3367 4921 5169 5187 5587 5889 8607 9139 10101 12061 13741 14763 16761 20083 22399 27417 32737 36183 37297 39109 41223 60249 63751 63973 67197 72631 98211 106153 111891 117327 156793 191253 191919 217893 229159 260173 261079 318459 425581 446257 470379 508417 687477 743071 780519 783237 828763 1211269 1276743 1338771 1379989 1525251 1821211 2229213 2486289 2979067 3382249 3633807 4139967 4943287 5463633 5801341 8478883 8937201 9626401 9659923 10146747 14829861 15746497 17404023 23675743 25436649 28879203 28979769 34603009 47239491 64262731 67384807 71027229 103809027 110225479 125143213 182901619 192788193 202154421 330676437 375429639 449839117 548704857 876002491 1280311333 1349517351 2377721047 2628007473 3840933999 7133163141 16644047329 49932141987