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42886549139 = 731691128597
BaseRepresentation
bin100111111100001111…
…001100111010010011
311002200211121102111212
4213330033030322103
51200312424033024
631411331330335
73045524436650
oct477417147223
9132624542455
1042886549139
1117208380145
12838a7509ab
1340760c3ac5
14210bac0c27
1511b011aa0e
hex9fc3cce93

42886549139 has 16 divisors (see below), whose sum is σ = 50603360256. Its totient is φ = 35567704800.

The previous prime is 42886549127. The next prime is 42886549157. The reversal of 42886549139 is 93194568824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42886549139 - 216 = 42886483603 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42886549159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485389 + ... + 1513985.

It is an arithmetic number, because the mean of its divisors is an integer number (3162710016).

Almost surely, 242886549139 is an apocalyptic number.

42886549139 is a deficient number, since it is larger than the sum of its proper divisors (7716811117).

42886549139 is a wasteful number, since it uses less digits than its factorization.

42886549139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35546.

The product of its digits is 14929920, while the sum is 59.

The spelling of 42886549139 in words is "forty-two billion, eight hundred eighty-six million, five hundred forty-nine thousand, one hundred thirty-nine".

Divisors: 1 7 31 217 6911 28597 48377 200179 214241 886507 1499687 6205549 197633867 1383437069 6126649877 42886549139