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134849808 = 24325317669
BaseRepresentation
bin10000000100110…
…10010100010000
3100101202002011100
420002122110100
5234010143213
621214144400
73225130062
oct1002322420
9311662140
10134849808
116a134725
12391b2100
1321c260b2
1413ca3732
15bc8a773
hex809a510

134849808 has 60 divisors (see below), whose sum is σ = 384534540. Its totient is φ = 44099328.

The previous prime is 134849801. The next prime is 134849837. The reversal of 134849808 is 808948431.

It can be written as a sum of positive squares in 2 ways, for example, as 61027344 + 73822464 = 7812^2 + 8592^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134849801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1203 + ... + 16466.

It is an arithmetic number, because the mean of its divisors is an integer number (6408909).

Almost surely, 2134849808 is an apocalyptic number.

134849808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134849808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192267270).

134849808 is an abundant number, since it is smaller than the sum of its proper divisors (249684732).

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

134849808 is a wasteful number, since it uses less digits than its factorization.

134849808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17736 (or 17727 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 134849808 is about 11612.4850053725. The cubic root of 134849808 is about 512.8024728857.

The spelling of 134849808 in words is "one hundred thirty-four million, eight hundred forty-nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 53 72 106 144 159 212 318 424 477 636 848 954 1272 1908 2544 3816 7632 17669 35338 53007 70676 106014 141352 159021 212028 282704 318042 424056 636084 848112 936457 1272168 1872914 2544336 2809371 3745828 5618742 7491656 8428113 11237484 14983312 16856226 22474968 33712452 44949936 67424904 134849808