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49240812129 = 3197342128109
BaseRepresentation
bin101101110110111110…
…110010101001100001
311201002200021102122120
4231312332302221201
51301321121442004
634342041254453
73362142666015
oct556676625141
9151080242576
1049240812129
1119979177a63
129662794429
1348496a9232
14255198a545
151432dd03d9
hexb76fb2a61

49240812129 has 32 divisors (see below), whose sum is σ = 70225526400. Its totient is φ = 30599493120.

The previous prime is 49240812119. The next prime is 49240812161. The reversal of 49240812129 is 92121804294.

It is not a de Polignac number, because 49240812129 - 217 = 49240681057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49240812119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1737727 + ... + 1765835.

It is an arithmetic number, because the mean of its divisors is an integer number (2194547700).

Almost surely, 249240812129 is an apocalyptic number.

It is an amenable number.

49240812129 is a deficient number, since it is larger than the sum of its proper divisors (20984714271).

49240812129 is a wasteful number, since it uses less digits than its factorization.

49240812129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28625.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 49240812129 in words is "forty-nine billion, two hundred forty million, eight hundred twelve thousand, one hundred twenty-nine".

Divisors: 1 3 19 57 73 219 421 1263 1387 4161 7999 23997 28109 30733 84327 92199 534071 583927 1602213 1751781 2051957 6155871 11833889 35501667 38987183 116961549 224843891 674531673 863873897 2591621691 16413604043 49240812129