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50538387042 = 232111321193053
BaseRepresentation
bin101111000100010100…
…101001011001100010
311211110002220001210200
4233010110221121202
51312000311341132
635114513010030
73436250126163
oct570424513142
9154402801720
1050538387042
111a484669220
129965253916
1349c5475440
14263603976a
1514abc91d7c
hexbc4529662

50538387042 has 96 divisors (see below), whose sum is σ = 129254239296. Its totient is φ = 14069462400.

The previous prime is 50538387037. The next prime is 50538387047. The reversal of 50538387042 is 24078383505.

50538387042 is a `hidden beast` number, since 5 + 0 + 538 + 3 + 8 + 70 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (50538387037) and next prime (50538387047).

It is not an unprimeable number, because it can be changed into a prime (50538387047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496588 + ... + 589640.

It is an arithmetic number, because the mean of its divisors is an integer number (1346398326).

Almost surely, 250538387042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50538387042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64627119648).

50538387042 is an abundant number, since it is smaller than the sum of its proper divisors (78715852254).

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

50538387042 is a wasteful number, since it uses less digits than its factorization.

50538387042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93296 (or 93293 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

It can be divided in two parts, 50538 and 387042, that added together give a triangular number (437580 = T935).

The spelling of 50538387042 in words is "fifty billion, five hundred thirty-eight million, three hundred eighty-seven thousand, forty-two".

Divisors: 1 2 3 6 9 11 13 18 22 26 33 39 66 78 99 117 143 198 211 234 286 422 429 633 858 1266 1287 1899 2321 2574 2743 3798 4642 5486 6963 8229 13926 16458 20889 24687 30173 41778 49374 60346 90519 93053 181038 186106 271557 279159 543114 558318 837477 1023583 1209689 1674954 2047166 2419378 3070749 3629067 6141498 7258134 9212247 10887201 13306579 18424494 19634183 21774402 26613158 39268366 39919737 58902549 79839474 117805098 119759211 176707647 215976013 239518422 255244379 353415294 431952026 510488758 647928039 765733137 1295856078 1531466274 1943784117 2297199411 2807688169 3887568234 4594398822 5615376338 8423064507 16846129014 25269193521 50538387042